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

2014-12-26 Thread Dr. K. C. Bhamu
Thank you very much Prof Mark. I run SP calculation and waiting for result. Regards Bhamu On Sat, Dec 27, 2014 at 12:08 AM, Laurence Marks wrote: > One comment: why are they "good"? Just because they are similar to what > someone else has published does not mean much. > > If the energy with sp

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

2014-12-26 Thread Laurence Marks
One comment: why are they "good"? Just because they are similar to what someone else has published does not mean much. If the energy with spin polarization is lower (everything else the same) that is meaningful. ___ Professor Laurence Marks Department of Materials Science

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

2014-12-26 Thread Dr. K. C. Bhamu
Thank you very much Prof Tran, I got good results with LSDA. On Fri, Dec 26, 2014 at 3:58 PM, wrote: > You have to check in literature what is said about magnetism. > > > On Fri, 26 Dec 2014, Dr. K. C. Bhamu wrote: > > One more query: I have not tried to compute spin polarised calculations >

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

2014-12-26 Thread tran
You have to check in literature what is said about magnetism. On Fri, 26 Dec 2014, Dr. K. C. Bhamu wrote: One more query: I have not tried to compute spin polarised calculations as Cu is in this material. Is this may cause problem? On Fri, Dec 26, 2014 at 3:25 PM, wrote: Have you al

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

2014-12-26 Thread Dr. K. C. Bhamu
One more query: I have not tried to compute spin polarised calculations as Cu is in this material. Is this may cause problem? On Fri, Dec 26, 2014 at 3:25 PM, wrote: > Have you also tried LDA yourself? Maybe only LDA gives CBM at GAMMA. > You also need to make sure that the geometrical structu

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

2014-12-26 Thread Dr. K. C. Bhamu
I have tried with LDA but problem remained same. Now I asked geometrical inputs from the author of this paper. Thank you Prof Tran. regards Bhamu On Fri, Dec 26, 2014 at 3:25 PM, wrote: > Have you also tried LDA yourself? Maybe only LDA gives CBM at GAMMA. > You also need to make sure that

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

2014-12-26 Thread tran
Have you also tried LDA yourself? Maybe only LDA gives CBM at GAMMA. You also need to make sure that the geometrical structure that you use is the same as in this paper. On Fri, 26 Dec 2014, Dr. K. C. Bhamu wrote: They have used plane wave pseudopotintial method basd on LDA calculation. Here

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

2014-12-26 Thread Dr. K. C. Bhamu
They have used plane wave pseudopotintial method basd on LDA 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 wasim raja Mondal
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, Dr. K. C. Bhamu wrote: > Thank you Prof Tran > I mean by literature as theoretical calculations. I have few papers in > which results are produced using CASTEP and KANSAI-99 c

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

2014-12-26 Thread Dr. K. C. Bhamu
Thank you Prof Tran I mean by literature as theoretical calculations. I have few papers in which results are produced using CASTEP and KANSAI-99 codes. *Dr. K. C. Bhamu(Dr. D. S. Kothari Postdoc Fellow)Thin Films & Membrane Science Lab.Departm

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 have tried to com

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

2014-12-26 Thread Dr. K. C. Bhamu
Dear Wien2k users I have tried to compute mbj band structure of 2H-ABO2 type semiconductors using latest version of Wien2k. I got that the VBM is same as reported in literature but CBM is at M zone boundary while in literature it is at Gamma. How I can overcome this uncertain situation? I also trie