Noncollinear exchange coupling in a trilayer magnetic junction and its connection to Fermi surface topology

Wen Min Huang*, Cheng-Hung Chang, Hsiu Hau Lin

*此作品的通信作者

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

We investigate the noncollinear exchange coupling across a trilayer magnetic junction composed of an intermediate layer with Rashba interaction and two sandwiching ferromagnetic layers. To compute the mediated exchange coupling, one needs to go beyond the single-particle argument and integrate over the contributions from the whole Fermi surface. Surprisingly, we find that the topology of the Fermi surface plays a crucial role in determining whether the oscillatory Ruderman-Kittel-Kasuya-Yosida or the spiral interactions will dominate. At the end, we discuss the connection of our numerical results to experiments and potential applications.

原文English
文章編號241307
期刊Physical Review B - Condensed Matter and Materials Physics
73
發行號24
DOIs
出版狀態Published - 20 六月 2006

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