Self-sustaining resistance oscillations by electron-nuclear spin coupling in mesoscopic quantum hall systems

被引：0

作者：

Yusa, G ^{[1
]}

Hashimoto, K ^{[1
]}

Muraki, K ^{[1
]}

Saku, T ^{[1
]}

Hirayama, Y ^{[1
]}

机构：

[1] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa, Japan

来源：

PHYSICS OF SEMICONDUCTORS, PTS A AND B | 2005年 / 772卷

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study electron-nuclear spin coupling implemented in mesoscopic fractional quantum Hall (FQH) devices. We find that longitudinal resistance in such systems oscillates with a period of several hundreds of seconds driven by a constant voltage instead of a constant current. The anomalous behavior suggests that an average nuclear spin polarization self-sustainingly oscillates between randomized and polarized states, which reveal nonlinear nature of the mesoscopic electron-nuclear spin coupled systems.

引用

页码：1341 / 1342

页数：2

共 5 条

[1] Electrically controlled nuclear spin polarization and relaxation by quantum-Hall states [J].