Injection of spin-polarized carriers in ferromagnet/superconductor tunnel junctions

被引：3
|
作者：
Sun, GY [1 ]
Zheng, ZM
Xing, DY
Dong, JM
Wang, ZD
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[3] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 04期
关键词：
D O I：
10.1088/0953-8984/13/4/309
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We apply a quantum-mechanical approach to study critical current suppression in a superconductor (SC) due to injection of spin-polarized carriers from a ferromagnet (FM) through a FM/SC tunnel junction, It is found that for a given bias voltage, the superconductivity suppression depends strongly on the polarization of the injection current, on the spin-diffusion length in the SC, and on the insulating barrier strength at the FM/SC interface.
引用
收藏
页码：627 / 636
页数：10
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