您当前所在位置: 首页 > 学者

赵宇军

  • 25浏览

  • 0点赞

  • 0收藏

  • 0分享

  • 51下载

  • 0评论

  • 引用

期刊论文

Ruderman-Kittel-Kasuya-Yosida-like Ferromagnetism in MnxGe1-x

赵宇军Yu-Jun Zhao Tatsuya Shishidou and A.J.Freeman

PHYSICAL REVIEW LETTERS 31 (2003) 047204-1-047204-4,-0001,():

URL:

摘要/描述

The nature and origin of ferromagnetism in magnetic semiconductors is investigated by means of highly precise electronic and magnetic property calculations on MnxGe1-x as a function of the location of Mn sites in a large supercell. Surprisingly, the coupling is not always ferromagnetic (FM), even for large Mn-Mn distances. The exchange interaction between Mn ions oscillates as a function of the distance between them and obeys the Ruderman-Kittel-Kasuya-Yosida analytic formula. The estimated Curie temperature is in good agreement with recent experiments, and the estimated effective magnetic moment is about 1.7 µB/Mn, in excellent agreement with the experimental values, (1.4–1.9) µB/Mn.

关键词:

版权说明:以下全部内容由赵宇军上传于   2009年12月03日 20时03分57秒,版权归本人所有。

我要评论

全部评论 0

本学者其他成果

    同领域成果