24小时热门版块排行榜    

查看: 933  |  回复: 2

tonglijia

木虫 (正式写手)

[求助] castep中能量计算输出文件*。castep中几个能量的区别

Therefore, CASTEP uses the Mermin finite temperature expression for the total energy (Marzari, 1997): E = EKS - TS, where T is the temperature (i.e., smearing width) and S is the Mermin entropy due to the different ways in which the partially filled bands could have been filled.

The CASTEP output is as follows. The line

Final energy, E             =  -861.8315373731     eV

gives the Kohn-Sham energy, EKS, which ignores the entropy. However, it is the total Mermin free energy that is minimized by CASTEP and reported in the SCF cycles in the line

Final free energy (E-TS)    =  -861.8315374521     eV

If you were actually interested in the electronic states at some reasonable nonzero temperature, you would smear the Fermi level with a thermal (i.e., Fermi-Dirac) smearing method and the free energy reported by CASTEP would be the value you require.
中Final energy, E和Final free energy (E-TS),以及Pseudo atomic calculation performed for Fe 3d6 4s2    Converged in 37 iterations to a total energy of -855.8641 eV的区别
回复此楼

» 收录本帖的淘帖专辑推荐

计算MS等

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

人,要靠自己!!!
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

tonglijia

木虫 (正式写手)

求解!!!追加高分!!!讲得好再追加50金币!!!
人,要靠自己!!!
2楼2013-03-11 09:54:55
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

tonglijia

木虫 (正式写手)

自己给答案吧,通常我们选择使用的时Final free energy (E-TS)    =  -861.8315374521     eV,即把这个当做我们计算体系的最终总能量。Pseudo atomic calculation performed for Fe 3d6 4s2    Converged in 37 iterations to a total energy of -855.8641 eV可以认为是在计算时MS选用的原子的能量。
人,要靠自己!!!
3楼2013-03-13 15:15:44
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 tonglijia 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 321求调剂 +4 Ymlll 2026-03-24 4/200 2026-03-24 14:44 by sprinining
[考研] 材料专硕找调剂 +3 哈哈哈吼吼吼哈 2026-03-23 3/150 2026-03-23 23:13 by peike
[考研] 269求调剂 +4 我想读研11 2026-03-23 4/200 2026-03-23 21:25 by pswait
[考研] 316求调剂 +7 梁茜雯 2026-03-19 7/350 2026-03-23 16:21 by lingjue
[考研] 298求调剂 +8 上岸6666@ 2026-03-20 8/400 2026-03-23 11:02 by laoshidan
[考研] 070300,一志愿北航320求调剂 +3 Jerry0216 2026-03-22 5/250 2026-03-23 09:16 by 。。堂堂
[考研] 293求调剂 +3 涛涛Wjt 2026-03-22 5/250 2026-03-22 22:21 by jiangpengfei
[考研] 311求调剂 +6 冬十三 2026-03-18 6/300 2026-03-22 20:18 by edmund7
[考研] 319求调剂 +4 小力气珂珂 2026-03-20 4/200 2026-03-22 15:53 by ColorlessPI
[考研] 275求调剂 +6 shansx 2026-03-22 8/400 2026-03-22 15:27 by barlinike
[考研] 313求调剂 +4 肆叁贰壹22 2026-03-19 4/200 2026-03-21 17:33 by ColorlessPI
[考研] 材料 271求调剂 +5 展信悦_ 2026-03-21 5/250 2026-03-21 17:29 by 学员8dgXkO
[考研] 299求调剂 +5 shxchem 2026-03-20 7/350 2026-03-21 17:09 by ColorlessPI
[考研] 295求调剂 +4 一志愿京区211 2026-03-18 6/300 2026-03-20 23:41 by JourneyLucky
[考研] 304求调剂 +7 司空. 2026-03-18 7/350 2026-03-20 23:08 by JourneyLucky
[考研] 288求调剂 +16 于海海海海 2026-03-19 16/800 2026-03-20 22:28 by JourneyLucky
[考研] 一志愿西南交通 专硕 材料355 本科双非 求调剂 +5 西南交通专材355 2026-03-19 5/250 2026-03-20 21:10 by JourneyLucky
[考研] 材料学求调剂 +4 Stella_Yao 2026-03-20 4/200 2026-03-20 20:28 by ms629
[考研] 261求B区调剂,科研经历丰富 +3 牛奶很忙 2026-03-20 4/200 2026-03-20 19:34 by JourneyLucky
[考博] 申博26年 +3 八6八68 2026-03-19 3/150 2026-03-19 19:43 by nxgogo
信息提示
请填处理意见