| 查看: 10617 | 回复: 3 | ||||
[交流]
谁来介绍一下狄拉克点的含义 已有3人参与
|
| 如题，老司机讲一下Dirac Point是什么，最好举个例子什么的 |
回复此楼» 收录本帖的淘帖专辑推荐
 科研经验和教训 |
» 猜你喜欢
各位大神，目前国内有哪些比较好用的逆合成软件？
已经有15人回复
-
国社科系统bug了，是不是要放榜了？
已经有10人回复
-
现代”学阀”该如何界定
已经有9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4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
-
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
-
申博发邮件
已经有11人回复
-
我的奶奶
已经有3人回复
FMStation
至尊木虫 (知名作家)
- 应助: 591 (博士)
- 贵宾: 0.03
- 金币: 18769.2
- 红花: 97
- 帖子: 8891
- 在线: 1498.1小时
- 虫号: 2400059
- 注册: 2013-04-04
- 专业: 计算机应用技术
★
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
|
https://www.physicsforums.com/th ... dirac-point.537928/ Hence, the electrons and holes are called Dirac fermions, and the six corners of the Brillouin zone are called the Dirac points. Reference https://www.physicsforums.com/th ... dirac-point.537928/ https://www.quora.com/What-is-the-Dirac-point-in-graphene The conduction and valence bands meet each other in graphene, which is like a zero band gap semiconductor. The six points in the two dimensional Brillouin zone where the bands meet are called Dirac points. They are called Dirac points since the linearity of the dispersion relation near these points means that the charge carriers satisfy an equation of motion that has the same form as the (relativistic) zero mass Dirac equation. https://www.researchgate.net/pos ... _in_a_simple_manner The Dirac point is the crossing point of the linear energy dispersion curves E_+(k)=+ v_F.k, E_-(k) =-v_F.k . https://arxiv.org/pdf/1004.3396.pdf The Fermi level is, therefore, situated at the points, called Dirac points, where the π band touches the π band. |
2楼2016-09-27 05:02:16
lelandfarm
木虫 (正式写手)
- 应助: 9 (幼儿园)
- 金币: 4728.3
- 红花: 5
- 帖子: 582
- 在线: 152.7小时
- 虫号: 2613864
- 注册: 2013-08-24
- 专业: 激光
3楼2016-09-29 14:46:11
4楼2017-09-28 19:17:56