| 查看: 2049 | 回复: 5 | |||
[交流]
半导体能带计算成金属 已有3人参与
|
|
之前用vasp跑过尖晶石GeZn2O4的能带,算出来带隙是1.2左右,最近用castep重跑gga pbe计算发现计算出来成了金属,求助各位大佬。 目前需要计算的一批尖晶石化学式,用Castep跑的都算出来是金属,不知道怎么办 发自小木虫IOS客户端 |
» 猜你喜欢
现代”学阀”该如何界定
已经有8人回复
课题组招2027级博士 上海工程技术大学 激光智能制造方向
已经有3人回复
上海工程技术大学 激光智能制造课题组 2027级博士研究生招生
已经有3人回复
实名举报:华南理工大学物理与光电学院副院长李志远婚内两次出轨女学生(博士)
已经有16人回复
上海工程技术大学激光智能制造课题组|2027级博士研究生招生公告
已经有11人回复
上海工程技术大学激光智能制造课题组招收博士研究生
已经有10人回复
申博发邮件
已经有11人回复
各位大神,目前国内有哪些比较好用的逆合成软件?
已经有12人回复
我的奶奶
已经有3人回复
国社科系统bug了,是不是要放榜了?
已经有9人回复
wangyikeco
禁虫 (正式写手)
|
本帖内容被屏蔽 |
2楼2024-01-12 00:55:13
3楼2024-01-17 15:59:26
wangyikeco
禁虫 (正式写手)
★
小木虫: 金币+0.5, 给个红包,谢谢回帖
小木虫: 金币+0.5, 给个红包,谢谢回帖
|
本帖内容被屏蔽 |
4楼2024-01-18 00:33:37
awmc2008
至尊木虫 (文坛精英)
学习者
- 应助: 62 (初中生)
- 金币: 14952.6
- 红花: 10
- 帖子: 12438
- 在线: 737.1小时
- 虫号: 600677
- 注册: 2008-09-12
- 性别: GG
- 专业: 凝聚态物性 II :电子结构

5楼2024-01-23 23:08:14
rlafite
至尊木虫 (正式写手)
- 应助: 199 (高中生)
- 金币: 11352.5
- 红花: 29
- 沙发: 1
- 帖子: 956
- 在线: 361.9小时
- 虫号: 4563202
- 注册: 2016-04-02
- 性别: GG
- 专业: 同步辐射技术及其应用
★
小木虫: 金币+0.5, 给个红包,谢谢回帖
小木虫: 金币+0.5, 给个红包,谢谢回帖
|
Optoelectronic Response of GeZn2O4 through the Modified Becke—Johnson Potential Ahmad Iftikhar1, Amin B.2, Maqbool M.3, Muhammad S.2, Murtaza G.4, Ali S.5 and Noor N. A.5 2012 Chinese Physical Society and IOP Publishing Ltd Chinese Physics Letters, Volume 29, Number 9 Citation Ahmad Iftikhar et al 2012 Chinese Phys. Lett. 29 097102 Abstract A first-principles technique capable of describing the nearly excited states of semiconductors and insulators, namely the modified Becke—Johnson (mBJ) potential approximation, is used to investigate the electronic band structure and optical properties of spinel oxides: GeZn2O4. The predicted band gaps using the mBJ approximation are significantly more accurate than the proposed previous theoretical work using the common LDA and GGA. Band gap dependent optical parameters, like the dielectric constant, index of refraction, reflectivity and optical conductivity are calculated and analyzed. The results from the dielectric constant shows that the numerical value of the static dielectric, after dropping constantly, becomes less than zero and the material exhibits metallic behavior. The refractive index also drops below unity for photons higher than 18 eV, which indicates that the velocities of incident photons are greater than the velocity of light. However, these phenomena can be explained by the fact that a signal must be transmitted as a wave packet rather than a monochromatic wave. This comprehensive theoretical study of the optoelectronic properties predicts that these materials can effectively be used in optical devices. |
6楼2024-01-24 14:22:34










回复此楼