Re: [Wien] the sequence of doing +U and SOC in a GGA+U+SOC calculation

2016-01-21 Thread tran
that has the most negative total energy (:ENE in case.scf). F. Tran On Thu, 21 Jan 2016, Bin Shao wrote: Dear all, I need to do GGA+U+SOC calculation with 3d and 4/5d atoms. I found that the results with different sequence of doing +U and SOC were different, i.e., if you first do +U calculation

Re: [Wien] BJ vs. mBJ

2016-01-15 Thread tran
Both mBJ and unmodified BJ are potentials. For the 2nd second, I would just say: use the potential which leads to results that are the most pleasing. On Fri, 15 Jan 2016, delamora wrote: Thank you Dr. Tran, In the setting of the mBJ I used; init_mbj Which has different

Re: [Wien] BJ vs. mBJ

2016-01-15 Thread tran
ximum (grep for :BAN8: in case.scf). If not there is something wrong in your calculations. F. Tran On Thu, 14 Jan 2016, delamora wrote: WIEN2k users,     I am trying the mBJ potential and the Unmodified BJ potential, so I took NaCl as an example, so I get for the gap; without BJ:    

Re: [Wien] Geometry optimization + dftd3

2016-01-09 Thread tran
yes On Fri, 8 Jan 2016, Bruno Landeros wrote: Dear Wien2k users: When a minimization of internal parameters is carried out by using the command run_lawp -min -dftd3 Does the final TOTAL ENERGY reported at the case.scf file include the DFTD3 correction for the energy?  Thanks in advance,

Re: [Wien] Case.in1

2015-12-26 Thread tran
http://www.wien2k.at/reg_user/textbooks/DFT_and_LAPW_2nd.pdf On Sat, 26 Dec 2015, Tarek Hammad wrote: Dear all Is it possible to find more explaination of file case.in1 than described in the userguide?? Thanks a lot. Dr. Tarek Hammad. ___ Wien mai

Re: [Wien] lattice change mBJ+SO

2015-12-25 Thread tran
Yes, initialization is necessary only for the lattice. On Fri, 25 Dec 2015, emami seyyed amir abbas wrote: Dear users I am trying to run mBJ+SO for a cubic structure. Also i need to investigate the effect of lattice change on its magnetic properties. As i know for GGA calculation, i can just

Re: [Wien] relaxation of atomic positions with the full hybrid functionals

2015-12-25 Thread tran
Indeed, forces are not implemented for hybrid functionals. Also not for SOC. So, no relaxation of atomic positions is possible. On Thu, 24 Dec 2015, kadda AMARA wrote: so much the better it is very cold here !!! (correct me if I am wrong) relaxation of atomic positions is possible only for func

Re: [Wien] Graphene bandstructure

2015-12-22 Thread tran
Hi, For graphene, you need to add vacuum in the z-direction in order to avoid interactions between the periodically repeated monolayers. Maybe the vacuum that you used is not large enough. F. Tran On Tue, 22 Dec 2015, Islam, Md F wrote: Hi, I am trying to do a bandstructure calculation

Re: [Wien] Formula full-potential

2015-12-22 Thread tran
mp/22/11/10.1063/1.524800 http://journals.aps.org/prb/abstract/10.1103/PhysRevB.26.4571 Actually, for which reason do you need details of the potential? F. Tran On Mon, 14 Dec 2015, Tuan Vu wrote: Dear Prof. F. Tran The links on the site, we did not find detailed information on the constru

Re: [Wien] HF eqivalent to HSEsol

2015-12-21 Thread tran
Yes it is. On Mon, 21 Dec 2015, kadda AMARA wrote: Hi, Does anyone know if the YS-PBE0(alpha = 0.25) based on the PBEsol is equivalent to HSEsol ? best regards ___ Wien mailing list Wien@zeus.theochem.tuwien.ac.at http://zeus.theochem.tuwien.ac.at/

Re: [Wien] MBJ, case.in0_grr

2015-12-18 Thread tran
I don' fully understand you explanantions. Finally, are the results with the two different case.in0_grr the same? On Sat, 19 Dec 2015, shima pourrad wrote: Dear Tran I ran the calculations with “i 200” to increase the default iterations, but I don’t know why my second calculation lea

Re: [Wien] MBJ, case.in0_grr

2015-12-16 Thread tran
ith dstart or from previous PBE calculation. Then, if the calculation seems to converge, I switch back to default parameters in case.inm to reach convergence a little bit faster. F. Tran On Wed, 16 Dec 2015, shima pourrad wrote: Dear F.Tran I appreciate a lot because of your explanation.

Re: [Wien] MBJ, case.in0_grr

2015-12-14 Thread tran
quot; So, I don't understand why you got two different results. Can you show us the input files case.in0 and case.in0_grr that you used for the two calculations? F. Tran On Mon, 14 Dec 2015, shima pourrad wrote: Dear P.Blaha and F.Tran and Wie

Re: [Wien] MBJ, case.in0_grr

2015-12-14 Thread tran
I've just made it does not matter which one of these two is specified in case.in0_grr: "EX_GRR EC_NONE VX_GRR VC_NONE" "EX_GRR VX_GRR" So, I don't understand why you got two different results. Can you show us the input files case.in0 and case.in0_grr that you used fo

Re: [Wien] mBJ for FeO

2015-12-11 Thread tran
orbup/dn 3) run LDA+U with -orbc instead of -orb 4) save the contrained calculation when it is finished 4) run LDA+U or mBJ as usual. The struct and dmat files of a recent LDA+U calculation on FeO are attached. F. Tran On Thu, 10 Dec 2015, John McLeod wrote: Hello all, I tried to calculate the

Re: [Wien] mBJ for FeO

2015-12-11 Thread tran
n LDA+U or mBJ as usual. The struct and dmat files of a recent LDA+U calculation on FeO are attached. F. Tran On Thu, 10 Dec 2015, John McLeod wrote: Hello all, I tried to calculate the electronic structure of FeO using mBJ. 1. I took the cubic FeO structure, made a 2x2x2 primitive supercell,

Re: [Wien] Correct band gap value

2015-12-09 Thread tran
What does "manually" mean? If it means band structure plotting, then probably the VBM and/or CBM is not along the path in the Brillouin zone that you chose. F. Tran On Thu, 10 Dec 2015, Muhammad Sajjad wrote: I selected 2000 k-points. grep GAP *.scf gives 0.923 eV while manually I

Re: [Wien] Correct band gap value

2015-12-09 Thread tran
If your k-mesh is not dense enough such that there is no k-point at the VBM and/or CBM or close to, then :GAP will be larger than the band gap from a band structure. F. Tran On Wed, 9 Dec 2015, Muhammad Sajjad wrote: Dear AllDoes the command "grep GAP *.scf" gives correct band gap

Re: [Wien] Formula full-potential

2015-12-09 Thread tran
ably the thesis from P. Dufek that we have only as a hard copy (no PDF). F. Tran On Wed, 9 Dec 2015, Tuan Vu wrote: Dear All   I just read paper “Computation of Materials Properties at the Atomic Scale // Karlheinz Schwarz 2015” (4.2. The choice of the potential) and User's Guide (

Re: [Wien] DFT-D3 Forces

2015-12-08 Thread tran
-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg11341.html F. Tran On Tue, 8 Dec 2015, Bruno Landeros wrote: I found in a 2014 mail that there was a problem with the dftd3 executable for the computation of forces. Does anyone know if this problem was solved with the last release of the dftd3

Re: [Wien] orbital pot (DFT+U)

2015-11-29 Thread tran
Hi, Do you have also a proper case.indm(c) for lapwdm? Are you sure that the orb and lapwdm packages were executed (check :log or case.dayfile)? The best is maybe that you attach case.scf such that we can see what's going on. F. Tran On Sun, 29 Nov 2015, Jihoon Park wrote: Dear Dr. Tra

Re: [Wien] orbital pot (DFT+U)

2015-11-26 Thread tran
Did you adapt natorb, iatom, etc. to your particular case? Also, 0.07 Ry is a very small U which is one order of magnitude smaller than usual values. F. Tran On Thu, 26 Nov 2015, Jihoon Park wrote: Dear users, This is my case.inorb file.   1  2  0                             nmod, natorb

Re: [Wien] orbital pot (DFT+U)

2015-11-25 Thread tran
Did you use run calculation with the -orb flag: runsp_lapw -orb On Wed, 25 Nov 2015, Jihoon Park wrote: Dear users, I have tried to add GGA+U with different U values, but always get the same total energies. The steps that I did are as follows: 1. Do spin-polarized calculation. 2. setup spin-o

Re: [Wien] two mBJ questions

2015-11-24 Thread tran
I will try to make more clear. F. Tran Your explanation is perfectly clear. I think I understand now what caused my confusion. IMHO there is a mistake in userguide on page 126, Table 7.3: XC shortcut-switches. It shows that alternative to XC_MBJ is EX_LDA EC_LDA VX_MBJ VC_MBJ. So when I tried

Re: [Wien] two mBJ questions

2015-11-24 Thread tran
arameters were calibrated such that the mBJLDA potential reproduces at best the experimental band gaps. The energy was not used at all in this procedure. If my explanations are too complicated, then I will try to make more clear. F. Tran On Tue, 24 Nov 2015, Pavel Ondračka wrote: Dear Wi

Re: [Wien] Spin moment when spin orbit coupling is considered

2015-11-20 Thread tran
Hi, No. :MM is only the spin component. The total is :MM + :ORB F. Tran On Fri, 20 Nov 2015, Madhav Ghimire wrote: Dear all, I have been working on 5d systems . Since the atoms bears strong spin-orbit coupling, I performed the DFT calculations considering SOC effects. I assume that

Re: [Wien] gap

2015-11-14 Thread tran
with respect to PBE. F. Tran On Fri, 13 Nov 2015, Brik Hamida wrote: Hi Im working on  electronic structure  of monolayer material. I  used GGA and MBJ approaches and the obtained gap is very small  in comparaison with the experimental result. In the useeguide of wien2k , the authors note tha

Re: [Wien] L'approximation MBJ

2015-11-11 Thread tran
Bonjour, oui pourquoi pas. Neanmoins, il n'est pas sure que MBJ donne des resultats plus corrects que PBE. Il faut faire une recherche bibliographique. Cet article est peut-etre interessant: http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.045103 F. Tran On Wed, 11 Nov 2015, Sameh

Re: [Wien] Type II AFM MnO

2015-11-04 Thread tran
Hi, This is MnO.struct which corresponds to AFM II. In xcrysden you can increase the number of units shown on the screen with Shift-n. Xcrysden can also write the lattice vectors (in file .xsf with "Save XSF Structure"). F. Tran On Thu, 5 Nov 2015, Manish Jain wrote: Dear WI

Re: [Wien] LM=10

2015-10-17 Thread tran
There is one blank too much before the "10" and "-10". In the code, the reading is done with the format (I3,I2), so it should be: 0 0 4 0 ... 9 9 -9 9 10 0 10 1-10 1 10 2-10 2 ... 1010-1010 F. Tran On Fri, 16 Oct 2015, Bruno Landeros wrote: Dear All: I have modified th

Re: [Wien] Problem in Gap value??(semiconductor not mettalic)

2015-09-27 Thread tran
This would be better that you send the whole file case.scf, not only a part of it. This would help us to understand the problem. F. Tran On Sun, 27 Sep 2015, Marzieh Gh wrote: Dear Prof.Blaha & Tran & Laurence Marks   I'm calculating electronic band structure of KTiOPO4 &a

Re: [Wien] Fwd: Problem in Gap

2015-09-24 Thread tran
Hi, Send the file case.scf such that we can have a look. F. Tran On Wed, 23 Sep 2015, Marzieh Gh wrote: -- Forwarded message -- From: Marzieh Gh Date: Wed, Sep 23, 2015 at 11:18 AM Subject: Problem in Gap To: wien@zeus.theochem.tuwien.ac.at Dear Prof.Blaha & Tran  

[Wien] No mailing list this weekend

2015-08-28 Thread tran
Dear WIEN2k users, The server of the WIEN2k mailing list will be down during the weekend. Regards, F. Tran ___ Wien mailing list Wien@zeus.theochem.tuwien.ac.at http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien SEARCH the MAILING-LIST at

Re: [Wien] volume optimization

2015-08-26 Thread tran
Maybe you could also send the ps file of the curve such that we can see. On Wed, 26 Aug 2015, osama rana wrote: Hello ,i m using LDA+U potential for f orbital system..instead of getting curve i always get a straight line with some point below it.(it doesnt fit the curve with BM equation..never

Re: [Wien] Emin cutoff energy

2015-08-26 Thread tran
This Emin cutoff in case.indm is set by default to -12 Ry (or -9 Ry in older wien2k versions) which is low enough such that all band states are used for the calculation of the density matrix. For standard LDA+U calculations Emin should not be changed. F. Tran On Wed, 26 Aug 2015, Paresh Chandra

Re: [Wien] cohesive-energy

2015-08-17 Thread tran
total energy can eventually have a symmetry which is lower than cubic. If this is the case, then you need to reduce the symmetry to obtain this state. The use of an orthorhombic symmetry should be enough in every case. F. Tran If the symmetry is too high (e.g., cubic) On Mon, 17 Aug 2015, Seyyed

Re: [Wien] cohesive-energy

2015-08-17 Thread tran
atom. Usually, a box of 12x12x12 angstrom is large enough except for the heavy alkali and alkali-earth atoms. For RMT and RKMAX, you have to test. It is important to choose the same parameters for the bulk and free atom. F. Tran On Mon, 17 Aug 2015, Seyyed Amir Abbas Emami wrote: ​Dear users

Re: [Wien] Plotting charge density for CBM and VBM

2015-07-30 Thread tran
Hi, With the option "-all X Y" for lapw2 (see user's guide) you can generate the charge density of only the electrons whose eigenvalues are in the range [X,Y] Rydberg (chosen for either the VBM or the CBM). This generates case.clmval that can be plotted with lapw5. F. Tran On T

Re: [Wien] calculate two crystal features Simultaneously

2015-07-17 Thread tran
What does "two crystal features Simultaneously" mean? Only one calculation per directory can be done. Your two calculations need to be setup and run in different directories. F. Tran On Fri, 17 Jul 2015, Mohammad Liyai wrote: Dear wien2k users I have search many more in mailin

Re: [Wien] EFG and MM

2015-07-02 Thread tran
should read more literature on EFG, e.g., http://www.wien2k.at/reg_user/faq/efg2.pdf On Thu, 2 Jul 2015, Muhammad Sajjad wrote: Dear Tran I guess the second value (like in :EFG001:Co1 EFG = 11.74814 *10**21 V / m**2 :EFG001:Co1 EFG = 11.74810 *10**21 V / m**2) is the correct value of EFG that is

Re: [Wien] EFG and MM

2015-07-01 Thread tran
Maybe you are running hybrid functionals? :MMIn is the spin magnetic moment inside the sphere surrounding nucleus with index n. :MMTOT is equal to :MMTOT = :MMI001*mult(001) + :MMI002*mult(002) + ... + :MMINT where mult(n) is the multiplicity of atom n ("MULT=" in case.struct) F. Tran

Re: [Wien] Single k-points HSE

2015-06-26 Thread tran
what is the issue with non parallel lapw1/lapw2? F. Tran On Fri, 26 Jun 2015, Laurence Marks wrote: > > Dear All, > > Has anyone tried to do a single k-point HSE calculation for a surface, I.e. gamma point, and can share information? ( I know t

Re: [Wien] Single k-points HSE

2015-06-26 Thread tran
Hi, what is the issue with non parallel lapw1/lapw2? F. Tran On Fri, 26 Jun 2015, Laurence Marks wrote: Dear All, Has anyone tried to do a single k-point HSE calculation for a surface, I.e. gamma point, and can share information? ( I know that there is a small issue with the non parallel

Re: [Wien] vector_split with hybrids

2015-06-22 Thread tran
vector_split in hfpara_lapw is inactive. It is there because hfpara_lapw was made from lapw2para_lapw and no cleaning was done. No plan to implement vector_split in SRC_hf. On Mon, 22 Jun 2015, Laurence Marks wrote: I noticed that hfpara uses vector_split, but I do not see it for HF in the UG

Re: [Wien] optic with hf

2015-06-15 Thread tran
Hi, You need -hf for joint as well: x joint -hf F. Tran On Mon, 15 Jun 2015, pavel.ondra...@email.cz wrote: Dear Wien2k mailing list, what is the needed procedure to run optic after hybrid calculation? I've tried: x lapw2 -hf -fermi x optic -hf after  "run_lapw -hf -p" succe

Re: [Wien] Exchange-holes

2015-06-11 Thread tran
http://scitation.aip.org/content/aip/journal/jcp/140/18/10.1063/1.4869598 On Thu, 11 Jun 2015, Tuan Vu wrote: Dear Professor Blaha and wien2k community, I just working in MBJ and read "Exchange holes in inhomogeneous systems: A coordinate-space model" A. D. Becke and M. R. Roussel Phys. Rev.

Re: [Wien] reciprocal-conventional vector and reciprocal-primitive vector

2015-06-08 Thread tran
The k-points in case.klist(_band) are written in terms of reciprocal-conventional vector. On Mon, 8 Jun 2015, nju...@sina.com wrote: Dear all I was use wien2k to calculate the band structure, and I have several problems. one is that the klist of band is in the unit of reciprocal-conventional

Re: [Wien] running PBEsol

2015-05-25 Thread tran
Yes, it's enough to choose PBEsol during init_lapw. The important is that the correct potential is selected in case.in0 (first line). On Mon, 25 May 2015, Seyyed Amir Abbas Emami wrote: ​Dear wien2k users I am using WIEN2k_12.1. I want to use PBEsol potential in my calculation. As i know, som

Re: [Wien] Hubbard U and mBJ

2015-05-02 Thread tran
Hi, these are papers on mBJ+U: http://dx.doi.org/10.1063/1.4798706 http://dx.doi.org/10.1063/1.4828864 Very often, the procedure is to adjust U until the desired results are obtained. F. Tran On Fri, 1 May 2015, delamora wrote: Sorry for this question, it has been answered before

Re: [Wien] How we calculate formation energy for a system

2015-04-22 Thread tran
The total energy is printed in case.scf. Search for :ENE in this file. On Thu, 23 Apr 2015, Vivek Jain wrote: Dear All, i am using FP-LAPW  calculation using WIEN2k for a Heusler system Fe2-xCoMnAl. i want to calculate the formation energy for the phase stability of system and find out which s

Re: [Wien] how to generate atomic positions for orthorhombic pbnm spacegroup

2015-04-22 Thread tran
You need to find the atomic positions in a crystallographic database or in the literature. On Wed, 22 Apr 2015, Shakeel Khandy wrote: Dear wien users I want to generate structure file for an orthorhombic compound of space group pbnm. what will i do to choose its atomic positions to make the de

Re: [Wien] Value of the Hubbard U and Hund exchange J

2015-04-15 Thread tran
Hi, To my knowledge there is no simple AND reliable way to calculate U and J (except tuning the values until agreement with experiment is reached). F. Tran On Wed, 15 Apr 2015, delamora wrote: Dear WIEN2k community, I am interested in evaluating the Hubbard U and sometime ago I tried

Re: [Wien] Convergence tests

2015-04-05 Thread tran
Hi, What do you mean by "exactly"? What are the differences between the published results and yours? F. Tran On Sun, 5 Apr 2015, Ary Ferreira wrote: Please, I'm trying to reproduce a result obtained with WIEN2k from a publication. I'm using the same structure, which

Re: [Wien] Regarding lmax in wien2k

2015-04-01 Thread tran
lmax is unitless. lmax is the maximum value of l (angular momentum) for the (l,m) expansion of wave function or density, etc. On Wed, 1 Apr 2015, Mamta Chauhan wrote: Dear users, I just want to know the unit of lmax. Is it unitless? Can anybody help me. Also tell me the significant of lmax.

Re: [Wien] [WIEN]about the file case.radwf

2015-03-31 Thread tran
This file is generated in the subroutine $WIENROOT/SRC_lapw2/l2main.F. You can find where exactly by searching for "write(23)" (23 is the unit number if this file). RRAD1 and a1lo are the large component of the relativistic radial functions, and RRAD2 and b1lo are the samll component

Re: [Wien] Update on hybrid troubles

2015-03-25 Thread tran
. Tran On Fri, 13 Mar 2015, Paul Fons wrote: I attempted to run a SCF loop using a hybrid functional and have run into some problems.  In my earlier try I had a incorrectly specified .machines file now I have addressed this problem. I also changed the SCRATCH environment variable to

Re: [Wien] Update on hybrid troubles

2015-03-13 Thread tran
functionals on such a big system. F. Tran On Fri, 13 Mar 2015, Paul Fons wrote: I attempted to run a SCF loop using a hybrid functional and have run into some problems. In my earlier try I had a incorrectly specified .machines file now I have addressed this problem. I also changed the SCRATCH

Re: [Wien] LDA-GGA and van der Waals

2015-03-09 Thread tran
, With reference to the paper Calculation of the lattice constant of solids with semilocal functionals Philipp Haas, Fabien Tran, and Peter Blaha PHYSICAL REVIEW B79, 085104 2009 ​For layred metal dichalcogenides (e. g. WS2), does it sound correct if the difference between the lattice constants

Re: [Wien] [WIEN]about wave function in WIEN2k

2015-03-06 Thread tran
step function. If it can help I can send you the subroutine which was calculating , which was present in a very early version of the Hartree-Fock module (SRC_hf). F. Tran On Fri, 6 Mar 2015, F.Tang wrote: My question is about Bloch eigenfunction calculated by WIEN2k package.  As I know, the

Re: [Wien] Problems with hybrid calculation

2015-03-03 Thread tran
hould consider the diagonal approximation (-diaghf), see the UG, which consists of only one (and faster) iteration. F. Tran On Tue, 3 Mar 2015, Paul Fons wrote: Hi I did run init_hf_lapw and I saw no sign of errors upon running it, however, I ran it from the web interface the first time.  I just rest

Re: [Wien] Problems with hybrid calculation

2015-03-02 Thread tran
hould forget about running hybrid functionals for 96 atoms, in particular with this small number of processors (unless you are willing to wait until retirement). Depending on the system/properties that you are considering, the use of a GGA functional maybe give results which are fairly reliable. F.

Re: [Wien] Ce-gama dft+DMFT calculation without symmetry

2015-02-27 Thread tran
ion in the irreducible BZ (and save it when it is finished), execute "x kgen -fbz" and run again the calculation (in principle only 3 iterations should be done). Recently we published results on Ce: http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.155106 F. Tran On Fri, 27 Feb 20

Re: [Wien] mBJ + SOC :: spin-orbit splitting reduction

2015-02-06 Thread tran
choosing EX_LDA or EX_PBE won't affect the band structure, but only the total energy. On Fri, 6 Feb 2015, Martin Gmitra wrote: Did you mean? TOT EX_LDA EC_PBE VX_MBJ VC_PBE What does it mean if one takes ? TOT EX_PBE EC_PBE VX_MBJ VC_PBE Thanks, Martin On Fri, Feb 6, 2015 at 5:45 PM,

Re: [Wien] mBJ + SOC :: spin-orbit splitting reduction

2015-02-06 Thread tran
Are you using a wien2k version which is recent enough to allow keywords (instead of numbers) in case.in0? On Fri, 6 Feb 2015, Martin Gmitra wrote: Dear Peter, Thanks for your answer. Could you please give me a starting hint how to couple mBJ with PBE correlation instead LDA (I do not see any "

Re: [Wien] Chemical potental

2015-01-30 Thread tran
If you are referring to this chemical potential: http://en.wikipedia.org/wiki/Fermi_level then you can find it in case.scf (grep for :FER). On Fri, 30 Jan 2015, Mohammed Abujafar wrote: Dear Wien2k users and developers, Hi, How can I calculate the chemical potential using WIEN2k code?Any help w

Re: [Wien] Fwd:

2015-01-25 Thread tran
Hi, If you look at the basic formula of the density matrix, you can see that there is no reason to expect zero non-diagonal elements. For instance, see Eq. (9) of http://journals.aps.org/prb/abstract/10.1103/PhysRevB.62.16392 F. Tran On Mon, 26 Jan 2015, huimei liu wrote: Dears all

Re: [Wien] Calculating Ueff from ab-initio calculations

2015-01-21 Thread tran
http://www.wien2k.at/reg_user/textbooks/Constraint_U.pdf On Wed, 21 Jan 2015, saurabh samant wrote: Dear WIEN2k users, Is there a way to calculate Ueff of LDA+U from ab-initio calculations. Plz explain. With regards Saurabh Samant ___ Wien mailing

Re: [Wien] interstitial magnetic moment

2015-01-19 Thread tran
The interstitial is the set of points of space which are not in any of the atomic spheres. So, the spin interstitial magnetic moment (:MMINT) is the difference between the number of spin-up and spin-down electrons in the interstitial. F. Tran On Mon, 19 Jan 2015, kadda amara wrote: Dear

Re: [Wien] Convergence problem

2015-01-01 Thread tran
calculated with the VASP code (my PBE values agree very well with them): http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.214102 You have to know which error is acceptable for your purposes. On Thu, 1 Jan 2015, Muhammad Sajjad wrote: Dear Tran Thank you for your further help. I am also

Re: [Wien] Convergence problem

2014-12-30 Thread tran
Hi, The struct file that I used is attached. For my purpose, the size of the unit cell was large enough to avoid spurious interactions between neighbouring cells. Note that a, b and c are different in order to avoid to high symmetry. F. Tran On Mon, 29 Dec 2014, Muhammad Sajjad wrote: Dear

Re: [Wien] Convergence problem

2014-12-29 Thread tran
0.0001 -it -i 1000 -NI 3) For the Ni atom the magnetic moment should be 2: :MMTOT: SPIN MAGNETIC MOMENT IN CELL =2.00238 4) I was using the default setting for mixer. F. Tran On Sun, 28 Dec 2014, Laurence Marks wrote: Also, only 1 k-point (Gamma), an RMT and RKMax similar to what you

Re: [Wien] (no subject)

2014-12-27 Thread tran
antiferromagnetic system, then it has to be compared to :MMI00X. You need to know what the experimental value is (for one atom or for the entire unit cell, etc.). F. Tran On Sat, 27 Dec 2014, wien learner wrote: Dear Users! Why in some of the systems huge magnetic moments are observed, say (20 to 30 bohr

Re: [Wien] CBM problem in 2H-ABO2 type semiconductors

2014-12-26 Thread tran
calculation. Here is the link of the paper http://www.sciencedirect.com/science/article/pii/S0375960114004800 regards Bhamu On Fri, Dec 26, 2014 at 2:58 PM, wasim raja Mondal wrote:       Prof Tran wanted to know which technique they

Re: [Wien] CBM problem in 2H-ABO2 type semiconductors

2014-12-26 Thread tran
is the link of the paper http://www.sciencedirect.com/science/article/pii/S0375960114004800 regards Bhamu On Fri, Dec 26, 2014 at 2:58 PM, wasim raja Mondal wrote: Prof Tran wanted to know which technique they used like GW or hybrid functional or GGA? On Fri, Dec 26, 2014 at 2:45 PM

Re: [Wien] CBM problem in 2H-ABO2 type semiconductors

2014-12-26 Thread tran
Hi, What do you mean by "literature"? Experimental result? Maybe only the more sophisticated (and much more expensive) methods like hybrid functionals or GW can reproduce the correct position of the CBM. F. Tran On Fri, 26 Dec 2014, Dr. K. C. Bhamu wrote: Dear Wien2k users I hav

Re: [Wien] SCF Convergence with mBJ

2014-12-05 Thread tran
could also do "grep :DIS case.scf" to show use how the distance charge behaves. F. Tran On Fri, 5 Dec 2014, Qasim Mahmood wrote: Dear User Could you please let me know what changes we can make to converge our calculations with mBJ ( at50% doping). I have done almost all the steps tha

Re: [Wien] mBJ

2014-12-02 Thread tran
like ScN it should really not matter which density (LDA or GGA) is used to start the mBJ calculation. F. Tran On Tue, 2 Dec 2014, Mohammed Abujafar wrote: Dear Developers and WIEN2k users, Hi! I have run WIEN2k for non-polarized ScN-ZB using LDA and using PBE-GGA to perform a mBJ calculation and

[Wien] how to increase precision of calculations?

2014-11-29 Thread tran
Actually, the most important is maybe the number of bands calculated by lapw1 which are used for the 2nd variational procedure for the spin-orbit coupling. So, to increase Emax in case.in1 (up to 20 Ry or even more) should be tried. F. Tran On Sat, 29 Nov 2014, t...@theochem.tuwien.ac.at wrote

Re: [Wien] how to increase precision of calculations?

2014-11-29 Thread tran
e.in2 is worth to try. F. Tran On Sat, 29 Nov 2014, Martin Gmitra wrote: Dear Wien2k users, We are calculating spin-orbit coupling splitting of valence band in wurtzite GaAs using mBJ. Since we are interested in a fine structure close to Gamma point, we need to achieve sufficient accuracy. I am att

Re: [Wien] structeditor

2014-11-28 Thread tran
. Tran On Fri, 28 Nov 2014, Lawal Mohammed wrote: Dear Profs. Peter and Robert, Thank for your help. My doubt is clear now, but when you said. For FCC Cu, you have just ONE atom in the cell. I become comfused. I thought fcc Cu has FOUR atoms per unit cell i.e. corner atoms 8*1/8=1, and face

[Wien] Small bug with hybrid functionals

2014-11-18 Thread tran
stems with very particular symmetry and would probably lead to a crash of the calculation. F. Tran ___ Wien mailing list Wien@zeus.theochem.tuwien.ac.at http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien SEARCH the MAILING-LIST at: http://www.mail-a

Re: [Wien] Basic question regarding band gap calculation using GGA+U approach

2014-11-11 Thread tran
Hi, Not to my knowledge. In addition such thumb rule would be difficult to apply when the band gap with LDA/GGA is zero. F. Tran On Tue, 11 Nov 2014, shamik chakrabarti wrote: Dear wien2k users,                            We know that charge transfer type band gap (transition metal d

Re: [Wien] mBJ and the states in the energy gap

2014-10-31 Thread tran
, good band gap does not automatically mean good intergap states. Using Hybrid functionals is an alternative, but they are expensive. F. Tran On Thu, 30 Oct 2014, Nikola Novakovic wrote: Hello all,  I am running simple supercell calculations of MgH2 with H vacancies. The purpose of these

[Wien] Problem with DFT-D3

2014-10-30 Thread tran
problem, the best solution is to compile the DFT-D3 package (that can be downloaded from the webpage of S. Grimme) with the flag "-C" instead of "-O" in the Makefile. Then the forces should be ok. F. Tran ___ Wien mailing list Wien@zeus.t

Re: [Wien] mBJ

2014-10-27 Thread tran
-i 1 If your version of WIEN2k is not too old, then you should have the script init_mbj_lapw that is recommended to use. F. Tran On Mon, 27 Oct 2014, Mohammed Abujafar wrote: Dear WIEN2k users, I am doing mBJ calculations on ScN-RS.All the steps has been done without any problem.After

[Wien] Help needed in DFTD3 of layered structure

2014-10-27 Thread tran
3-body-term abc may take some time. If this is really a problem, then switch off the 3-body term (choose "no" for "abc"). 2) choose the "zero" (instead of bj) damping function (1st line of case.indftd3). Thanks for having pointed out the problem. F. Tran

Re: [Wien] C-parameter in mbj calculation

2014-09-19 Thread tran
f the band gap. F. Tran On Fri, 19 Sep 2014, david yang wrote: Dear Prof. Blaha and WiEN2K users, I am trying to correct bandgap of a semiconductor by using mbj method.  I want to know where ( in which file) the c-default c-parameter value is printed. Also How can I tune the c-parameter for ba

Re: [Wien] Hard charge convergence

2014-09-02 Thread tran
What is important for geometry optimization is to require also force convergence (-fc) with a value like 0.5 or 1 (see user's guide). On Tue, 2 Sep 2014, Luis Ogando wrote: Dear Professor Tran,    Thank you for your response.    Actually, I am doing structure optimization, so energy i

Re: [Wien] Hard charge convergence

2014-09-02 Thread tran
Hi, It depends on your needs. Just use the command grep to see if the quantity you are interested in particular (e.g., magnetic moment or band gap) seems to have reached a degree of convergence which satisfies you. F. Tran On Tue, 2 Sep 2014, Luis Ogando wrote: Dear Wien2k community,    I

Re: [Wien] mBJ usability and relevance for semiconductor/metal heterostructures?

2014-09-02 Thread tran
ay in advance which c is the most appropriate for such heterostructures. Maybe tunning c until an experimental value is reproduced. For sure the vacuum should not be used to fix x. F. Tran On Tue, 2 Sep 2014, Martin Gmitra wrote: Dear Wien2k users, I would like to ask you to share your opinion

Re: [Wien] problem with Onsite-exact-exchange.

2014-08-30 Thread tran
http://zeus.theochem.tuwien.ac.at/pipermail/wien/2014-August/021555.html On Sat, 30 Aug 2014, Hemza Kouarta wrote:  Hi, I have done a calculation using Onsite-exact-exchange (-eece) only on the 3d of iron (in material : Fe1/4NbSe2) with soc . My calculation is converged and give a good result

Re: [Wien] problem with eece

2014-08-29 Thread tran
Hi, For the DOS calculation it is without -eece option: x lapw2 -up -so -qtl F. Tran On Fri, 29 Aug 2014, Hemza Kouarta wrote: Hi, i use HF function on the 3d metal (Fe) intercalated in NbSe2 ,my calculation is fine and converged,but when i do : " x lapw2 -up -so -eece -qtl &

Re: [Wien] mBJ Calc.

2014-08-21 Thread tran
What do you mean by "It doesn't work"? Which problem occurs? On Thu, 21 Aug 2014, hüsnü kara wrote: Dear Wien Users, I tried to get mBJ Calculation for non-polarized case. 1- StructGen 2- Initialization Calc. 3- Run Scf 4- UserGuide 4.5.9 modified Becke-Johnson potential (mBJ) for band gaps

Re: [Wien] electron density

2014-08-04 Thread tran
density you can use "x lapw2 (-c -up/dn) -all X Y", where X and Y (in Ry) define the energy range (not with respect to Fermi energy). F. Tran On Mon, 4 Aug 2014, mohamadreza sahmani wrote: Dear Wien2k developers and users 1. How exchange-correlation (r2v) in GGA method differs wi

Re: [Wien] questions about Fermi Energy for insulator such as borate minerals

2014-08-02 Thread tran
http://www.matfys.lth.se/education/FYSA31/bandstructure_intro.pdf On Sat, 2 Aug 2014, Bing Zhou wrote: Dear all, I am not familar with the basic physical concept of Fermi Energy due to my background, could you please help me with the following questions: 1. Fermi Energy results are listed in

Re: [Wien] FFTW error in hybrid functional of Silicon

2014-07-24 Thread tran
) by adding the options -C and -check (at the line FOPT = ...) and run again the calculation to check if there the root of the problem is not somewhere else. F. Tran On Thu, 24 Jul 2014, Myungchul Jung wrote: Dear users, I try to calculate the energy gap of silicon using hybrid functional with

Re: [Wien] (no subject)

2014-07-17 Thread tran
Usually GGA leads to slightly larger magnetic moment than LSDA. On Thu, 17 Jul 2014, sikandar azam wrote: Dear All Please answer me this question why we have different spin polarization values by using LSDA and GGA with regards sikander ___ Wien m

Re: [Wien] A confusion related to MULT ?

2014-07-16 Thread tran
Hi, Yes, you have to consider all positions in the unit cell. It is not clear from your struct files how many atoms there are overall (you do not show the complete files), but in your first struct file, I can see that there are at least 4 atoms (ATOM 2 consists of 2 equivalent atoms). F. Tran

Re: [Wien] elf calculations ?

2014-07-08 Thread tran
daries. F. Tran On Tue, 1 Jul 2014, Sebastien Petit wrote: Dear, I would like to know if it is possible to extract ELF values from a wien2k calculations. In fact, I would like to use the program named critic2 in order to identify the critical points of this function after a wien2k calculatio

Re: [Wien] got error when use mbj

2014-07-04 Thread tran
Hi, it is difficult to answer without more information. Is there a message in lapw0.error? F. Tran On Fri, 4 Jul 2014, Tuan Vu wrote: Hello I make step by step in user's guide about mbj for zns and got error (last command run_lapw -i 80) start (Fri Jul 4 15:03:08 MSK 2014)

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