Persistent Spin Oscillations in a Spin-Orbit-Coupled Superconductor

被引：15
|
作者：
Agarwal, Amit [1 ]
Polini, Marco [2 ]
Fazio, Rosario [1 ]
Vignale, G. [3 ]
机构：
[1] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy
[2] CNR, Ist Nanosci, NEST, I-56126 Pisa, Italy
[3] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 07期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.107.077004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quasi-two-dimensional superconductors with tunable spin-orbit coupling are very interesting systems with properties that are also potentially useful for applications. In this Letter we demonstrate that these systems exhibit undamped collective spin oscillations that can be excited by the application of a supercurrent. We propose to use these collective excitations to realize persistent spin oscillators operating in the frequency range of 10 GHz-1 THz.
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页数：5
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