24小时热门版块排行榜    

查看: 1041  |  回复: 3
【悬赏金币】回答本帖问题,作者学vasp的小白将赠送您 20 个金币

学vasp的小白

新虫 (初入文坛)

[求助] vasp计算的一些问题

在计算一个晶体时,算能带,极化这些值时要用上色散修正吗?什么时候要用上色散修正?什么时候不用?刚开始学,请说详细一点。

发自小木虫IOS客户端
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fyuewen

金虫 (正式写手)

'dipole correction' is necessary for 2D/1D systems. For 3D bulk systems, it doesn't affect the physical properties.
It's not relevant to ferroelectric polairzation calculations.
Physicsloveukulele!Aloha!
2楼2024-04-27 16:53:38
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fgmsyutong

木虫 (文坛精英)

vasp手册IVDW
举几例  锂硫电池 OER CO2RR 黑磷 双层石墨烯
3d104s1
3楼2024-05-02 12:05:59
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fyuewen

金虫 (正式写手)

引用回帖:
2楼: Originally posted by fyuewen at 2024-04-27 16:53:38
'dipole correction' is necessary for 2D/1D systems. For 3D bulk systems, it doesn't affect the physical properties.
It's not relevant to ferroelectric polairzation calculations.

My bad! I misunderstood the Chinese terminology! As to dispersion correction, you can always use it for all the materials, see https://pubs.aip.org/aip/jcp/article-abstract/132/15/1
However, it is noted in many cases its effects can be negligible. But when the system has long range interactions, you had better use it! To me, ferroelectrics especially for those with layered structures are such a platform

发自小木虫IOS客户端
Physicsloveukulele!Aloha!
4楼2024-05-03 12:33:31
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 学vasp的小白 的主题更新
不应助 确定回帖应助 (注意:应助才可能被奖励,但不允许灌水,必须填写15个字符以上)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[教师之家] 跳槽后在研项目怎么办? +4 简单化xn 2026-08-22 8/400 2026-08-23 07:20 by ilovexiaobin
[考博] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +3 2JOx3r2CYEgw 2026-08-21 10/500 2026-08-23 07:17 by OEbVnUOu01ol
[论文投稿] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +3 2JOx3r2CYEgw 2026-08-22 4/200 2026-08-23 04:04 by OEbVnUOu01ol
[论文投稿] 售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急 +3 QTy3jDtz1uLt 2026-08-21 9/450 2026-08-23 03:04 by OEbVnUOu01ol
[考博] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 DpSrDtM079iu 2026-08-22 3/150 2026-08-23 00:55 by OEbVnUOu01ol
[基金申请] 2026国自然函评费到账 +11 羊腰板 2026-08-21 11/550 2026-08-22 22:03 by lsbin3733
[基金申请] 93BebMhtakh前后11位开头都是大写 +7 且听虎啸 2026-08-17 8/400 2026-08-22 21:55 by 医学老男孩
[基金申请] 范进中举一文的中心思想 +3 zjuhero 2026-08-22 4/200 2026-08-22 20:02 by mycsru
[基金申请] 只有每年这种时候来逛逛小木虫 +24 yaoyewhu2008 2026-08-20 26/1300 2026-08-22 17:43 by kammury
[基金申请] 人气不行了 +8 fansofjerry 2026-08-21 8/400 2026-08-22 16:30 by zyqchem
[基金申请] 今天基金会出结果吗?20260819 +16 kkkl_v 2026-08-19 17/850 2026-08-22 16:12 by 阿布Abu
[基金申请] 今日不放榜?网传国自然预计 8 月 27 日可查结果 +16 医学老男孩 2026-08-20 20/1000 2026-08-21 21:13 by Ldrop2023
[基金申请] 科研孤儿太难了 +17 我4大白菜 2026-08-20 18/900 2026-08-21 20:57 by zhangev
[基金申请] 感觉是下周放榜了 +7 angus9576 2026-08-17 12/600 2026-08-21 13:38 by weiyin
[论文投稿] 投稿咨询 +5 wwm09 2026-08-17 7/350 2026-08-21 10:11 by 期刊论文帮手
[基金申请] 今天放榜没戏了吧 +9 yuleib84 2026-08-19 11/550 2026-08-21 10:06 by gltch
[基金申请] 估计是周四 +3 archvillain 2026-08-18 3/150 2026-08-21 01:48 by jnhyjjm
[基金申请] 时间戳变了,能看出什么问题? +18 基诺咪客 2026-08-17 23/1150 2026-08-20 17:19 by Godzela
[基金申请] 重要消息,中午系统在维护 +11 yuleib84 2026-08-18 12/600 2026-08-20 11:09 by xskun
[基金申请] 今天维护系统维护 祝所有人 高中 +8 gjjjzhong 2026-08-18 9/450 2026-08-18 13:01 by 家与远方
信息提示
请填处理意见