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虾仁猪心晖

新虫 (初入文坛)

[求助] 能带结构计算 已有2人参与

计算能带结构及电子态密度是,选择CASTEP还是DMOL3,哪个才是最优选项呢?
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计算材料6

新虫 (正式写手)

较小的bulk体系用Castep,较大有真空的体系用dmol3

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2楼2022-03-18 11:31:11
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wangyikeco

木虫 (正式写手)

newbie

【答案】应助回帖


感谢参与,应助指数 +1
虾仁猪心晖: 金币+1 2022-03-19 12:22:55
选择 ELK (FREE)
https://elk.sourceforge.io/
The ELK code
An all-electron full-potential linearized augmented-plane wave (LAPW) code with many advanced features. Written originally at Karl-Franzens-Universität Graz as a milestone of the EXCITING EU Research and Training Network, the code is designed to be as simple as possible so that new developments in the field of density functional theory (DFT) can be added quickly and reliably.

Or WIEN2k ($500)
https://www.wien2k.at/
The program package WIEN2k allows to perform electronic structure calculations of solids using density functional theory (DFT). It is based on the full-potential (linearized) augmented plane-wave ((L)APW) + local orbitals (lo) method, one among the most accurate schemes for band structure calculations. WIEN2k is an all-electron scheme including relativistic effects and has many features.
3楼2022-03-19 00:27:15
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NickyHCQ

木虫 (正式写手)

【答案】应助回帖

★ ★
感谢参与,应助指数 +1
虾仁猪心晖: 金币+2, 有帮助 2022-03-22 07:48:44
MS有版权?    CASTEP(吃内存吧。。)小体系跑跑,dmol3   可以分子轨道 (有些精度相对低)。
开源的大众软件也挺多哈!    quantum espresso   ELK (楼上已经推荐) Abinit  各有优缺点
还有python的PySCF????(名字不知道有么有对)          GPAW(丹麦大佬开发的,手册齐全)

要钱的  VASP(网上一大把。。不过还是支持购买)      WIEN2K(全电子类型,,手册不友好?)
4楼2022-03-19 13:49:18
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