Exchange-stabilization of Spin accumulation in the two-dimensional electron gas with Rashba-type of spin-orbit interaction

Henri M. Saarikoski, Gerrit E.W. Bauer

研究成果: Conference contribution

抄録

Spin accumulation is a crucial but imprecise concept in spintronics., the science that strives to harness the electron spin for the benefit of information and communication technology. In metal-based spintronics it is characterized in terms of semiclassical distribution functions. In semiconductors with a strong spin-orbit coupling the spin accumulation is instead described as superpositions of coherent eigenstates. Here we present theoretical arguments that both views of the spin accumulation can be reconciled by taking into account the electron-electron interaction: a sufficiently strong self-consistent exchange field reduces a spin accumulation to a chemical potential difference between the two spin bands even in the presence of spin-orbit coupling. We demonstrate the idea on a clean two-dimensional electron gas (2DEG) by showing how the exchange field protects a spin accumulation from dephasing.

本文言語English
ホスト出版物のタイトルProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
出版社World Scientific Publishing Co. Pte Ltd
ページ99-104
ページ数6
ISBN(印刷版)981428212X, 9789814282123
出版ステータスPublished - 2009 1 1
外部発表はい
イベント9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008 - Hatoyama, Saitama, Japan
継続期間: 2008 8 252008 8 28

出版物シリーズ

名前Proceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008

Other

Other9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
国/地域Japan
CityHatoyama, Saitama
Period08/8/2508/8/28

ASJC Scopus subject areas

  • 原子分子物理学および光学

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