Dear Dr. Blaha,
Thank you for your reply. Your guess is right, I am using LDA+U and those flat
bands
are f electrons. But I remember I had -orb switch in x lapw1 -up -band -orb.
Anyway,
I'll double check. Thank you so much.
Regards,
Jifeng
--
PhD candidate
National High Magnetic Field Laboratory
Condensed Matter Science
Chemical Biomedical Engineering
FAMU-FSU College of Engineering
Florida State University
sun at magnet.fsu.edu
- Original Message -
From: Peter Blaha pbl...@theochem.tuwien.ac.at
To: A Mailing list for WIEN2k users wien at zeus.theochem.tuwien.ac.at
Sent: Thursday, December 20, 2012 4:21:43 AM
Subject: Re: [Wien] DOS plots VS band strucutre plots
In general it seems to match quite well, with two exceptions:
i) You have a couple of VERY flat bands, which don't show up in the DOS.
The reason for this is your E-mesh (case.int). The DOS is calculated
ONLY on this E-grid. And you have so flat bands (f-electrons?) that they
do not fall on this energy grid, but in between.
Try to decrease the delta-E (case.int) unless you get the desired DOS
for the flat bands. (I assume, you are using a good kmesh for the DOS.)
ii) On the other hand, I can also see some DOS at an energy, where you
don't have bands
This leads me to speculate that you are using LDA+U or ... ?
And you forgot to add the -orb switch to x lapw1 -up -band -orb
PS: Next time create a low resolution jpg file and attach a small file.
Am 20.12.2012 10:11, schrieb wien-bounces at zeus.theochem.tuwien.ac.at:
--
Peter Blaha
Inst.Materials Chemistry
TU Vienna
Getreidemarkt 9
A-1060 Vienna
Austria
+43-1-5880115671
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