| 查看: 10410 | 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
291求调剂
已经有4人回复
-
生物学一志愿985，分数349求调剂
已经有8人回复
-
328求调剂，英语六级551，有科研经历
已经有12人回复
-
070300化学求调剂
已经有6人回复
-
考研化学308分求调剂
已经有7人回复
-
一志愿上海交大生物与医药专硕324分，求调剂
已经有5人回复
-
工科0856求调剂
已经有5人回复
-
一志愿中国石油大学（华东） 本科齐鲁工业大学
已经有4人回复
-
279分求调剂 一志愿211
已经有16人回复
-
求调剂一志愿武汉理工大学材料工程（085601）
已经有5人回复
FMStation
至尊木虫 (知名作家)
- 应助: 591 (博士)
- 贵宾: 0.03
- 金币: 18349.2
- 红花: 97
- 帖子: 8891
- 在线: 1490.1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
