[SIESTA-L] Reading HS file ( Hamitonian and Overlap matrices)

2008-01-25 Thread Luis Agapito
Hello everybody, I am writing a program to read the *.HS file generated by the keyword SaveHS. However, I noticed that the *.HS file generated with the parallel executable is different than the one generated with the serial executable of Siesta. I can successfully validate the data read from the

Re: [SIESTA-L] Titanium dioxide nanotubes

2008-01-25 Thread Roberto Sapiens
Dear Kugan: it looks quite different, indeed. If you don't know any algorithm (like the White et al. for carbon nanotubes) to help you to write a program to build the structure, you will have to do some hard ball and stick modelling... []s, Roberto 2008/1/25, navaratnarajah kuganathan <[EMAIL P

Re: [SIESTA-L] Titanium dioxide nanotubes

2008-01-25 Thread navaratnarajah kuganathan
Dear Roberto Thanks for your kind reply.The structure is slightly different.You can see the model from this link http://www.hydrogen.energy.gov/pdfs/review07/pdp_36_misra.pdf regards kugan - Original Message From: Roberto Sapiens <[EMAIL PROTECTED]> To: SIESTA-L@listserv.uam.es Se

Re: [SIESTA-L] Titanium dioxide nanotubes

2008-01-25 Thread Roberto Sapiens
Are they similar in structure with carbon or boron nitride nanotubes (honeycomb cylinders)? If so, you can just generate a cabon nanotube and manually replace the carbon atoms by the appropriate ones. []s, Roberto 2008/1/25, navaratnarajah kuganathan <[EMAIL PROTECTED]>: > Hi, > > Could you plea

[SIESTA-L] Titanium dioxide nanotubes

2008-01-25 Thread navaratnarajah kuganathan
Hi, Could you please any one share how i can generate coordinates for TiO2 nanotubes?.Thanks in advance. Sincerely Kugan Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

[SIESTA-L] Optimized parameters for Cd, Zn and S

2008-01-25 Thread vikas thakur
Dear Siesta users, Does anyone have optimized parametres to generate pseudopotentials for Cd, Zn and S ? Thanks a lot in advance. Vikas Thakur - Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.

[SIESTA-L] Instability in O(N) algoritm

2008-01-25 Thread Alexander Dub
Dear all! I have tried to perform relaxation of big (591 atom) silicon system (the surface with defects). This system has a gap ~ 0.6 eV (typical for silicon), I got this gap during single diagon step. I used following parameters for O(N) calculation: ON.RcLWF 3 Ang ON.ChemicalPotential F ON.Ch