Theoretical study of point-contact Andreev reflection spectroscopy for ferromagnetic-metal/multi-band superconductor junctions
Theoretical study of point-contact Andreev reflection spectroscopy for ferromagnetic-metal/multi-band superconductor junctions
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DOI：
10.1063/1.3678469
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发表时间：
2012-03
影响因子：
3.2
通讯作者：
Hiroyuki Ohtori;H. Imamura
中科院分区：
文献类型：
--
作者：
Hiroyuki Ohtori;H. Imamura
本文从理论上分析了正常导体/多波段超导体结中的Andreev反射。我们将Bogoliubov-de Gennes方程应用于具有扩展s波的超导体的情况，并计算了相应的点接触Andreev反射（PCAR）光谱。结果表明，具有高tc超导性的PCAR测量可以作为测量铁磁材料自旋极化的工具。
This paper theoretically analyzes the Andreev reflection in normal-conductor/multi-band super-conductor junctions. We applied Bogoliubov-de Gennes equations to the case of superconductors with extended s-waves and calculated the respective point-contact Andreev reflection (PCAR) spectra. Our results showed that the PCAR measurement with high-Tc superconductivity can be used as a tool for measuring the spin-polarization of ferromagnetic materials.