Quantum interference hybrid spin-current injector

被引：16

作者：

Giazotto, F. ^{[1
,2
]}

Bergeret, F. S. ^{[3
,4
,5
]}

机构：

[1] CNR, Ist Nanosci, NEST, I-56127 Pisa, Italy

[2] Scuola Normale Super Pisa, I-56127 Pisa, Italy

[3] Ctr Mixto CSIC UPV EHU, Ctr Fis Mat CFM MPC, E-20018 San Sebastian, Spain

[4] DIPC, E-20018 San Sebastian, Spain

[5] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 16期

关键词：

FIELD;

D O I：

10.1063/1.4802953

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose a quantum interference spin-injector nanodevice consisting of a superconductor-normal metal hybrid loop connected to a superconductor-ferromagnet bilayer via a tunneling junction. We show that for certain values of the applied voltage bias across the tunnel barrier and the magnetic flux through the loop, the spin-current can be fully polarized. Moreover, by tuning the magnetic flux, one can switch the sign of the spin polarization. This operation can be performed at frequencies within the tens of GHz range. We explore the nanodevice in a wide range of parameters, establish the optimum conditions for its experimental realization, and discuss its possible applications. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4802953]

引用

页数：5

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