Magnetic Moment Manipulation by a Josephson Current

被引：111
|
作者：
Konschelle, F. [1 ]
Buzdin, A.
机构：
[1] Univ Bordeaux, Condensed Matter Theory Grp, CPMOH, F-33405 Talence, France
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 01期
关键词：
All Open Access; Green;
D O I：
10.1103/PhysRevLett.102.017001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider a Josephson junction where the weak link is formed by a noncentrosymmetric ferromagnet. In such a junction, the superconducting current acts as a direct driving force on the magnetic moment. We show that the ac Josephson effect generates a magnetic precession providing then a feedback to the current. Magnetic dynamics result in several anomalies of current-phase relations (second harmonic, dissipative current) which are strongly enhanced near the ferromagnetic resonance frequency.
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页数：4
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