Harper-Hofstadter problem for 2D electron gas with ${bf k}$-linear Rashba spin-orbit coupli.pdfVIP

下载本文档

5
0
约1.68万字
约 8页
2017-04-13 发布于江苏
举报
版权申诉

Harper-Hofstadter problem for 2D electron gas with ${bf k}$-linear Rashba spin-orbit coupli.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Harper-Hofstadter problem for 2D electron gas with ${bf k}$-linear Rashba spin-orbit coupli

a r X i v : c o n d - m a t / 0 6 0 7 2 1 6 v 1 [ c o n d - m a t .m e s - h a l l ] 8 J u l 2 0 0 6 Europhysics Letters PREPRINT Harper-Hofstadter problem for 2D electron gas with k- linear Rashba spin-orbit coupling V. Ya. Demikhovskii1 and A. A. Perov1 1 Nizhny Novgorod State University - Gagarin ave., 23, Nizhny Novgorod 603950, Rus- sian Federation PACS. 71.70.Di – Landau levels. PACS. 71.70.Ej – Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect. Abstract. – The Harper-Hofstadter problem for two-dimensional electron gas with Rashba spin-orbit coupling subject to periodic potential and perpendicular magnetic field is studied analytically and numerically. The butterfly-like energy spectrum, spinor wave functions as well as the spin density and average spin polarization are calculated for actual parameters of semiconductor structure. Our calculations show that in two-dimensional electron gas subject to periodic potential and uniform magnetic field the effects of energy spectrum splitting caused by large spin-orbit Rashba coupling can be observed experimentally. Introduction. – The problem of quantum states of an electron subject to both periodic potential and homogeneous magnetic field remains to be actual for several last decades. There are various approaches and models for periodic potential and different approximations which are used for investigations of these states (see, ref. [1]). However, the spin-orbit interaction is usually excluded from the models as well as the Zeeman term. Such approach can be justified as long as the amplitude of the periodic potential is big enough to make the Landau level splitting much greater than the typical spin-orbit coupling energy and the Zeeman term. At the same time, under the realistic experimental conditions with 2D electron gas subject to the potential of lateral superlattice the potential amplitude V0 can be of the same order as the spin-orbit (SO) Rashba coupling. For example, in recent paper