Tunable transport in magnetically coupled MoGe/Permalloy hybrids

被引:32
作者
Belkin, A. [1 ,2 ]
Novosad, V. [1 ]
Iavarone, M. [1 ]
Fedor, J. [1 ]
Pearson, J. E. [1 ]
Petrean-Troncalli, A. [3 ]
Karapetrov, G. [1 ]
机构
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[2] IIT, Div Phys, Chicago, IL 60616 USA
[3] Austin Coll, Dept Phys, Sherman, TX 75090 USA
关键词
D O I
10.1063/1.2966156
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate controlled magnetotransport anisotropy of magnetically coupled superconductor-ferromagnet MoGe/Permalloy hybrids. The rotatable anisotropy Permalloy ferromagnet with stripe domain structure induces in-plane anisotropy in superconducting order parameter. We show that near the superconductor-normal state phase boundary the superconductivity in MoGe is localized in narrow mesoscopic channels just above the magnetic domain walls. Changing the in-plane direction of magnetic stripe domains it is possible to reconfigure the direction of the superconducting channels and controllably rotate the direction of the in-plane anisotropy axis in the superconductor. (C) 2008 American Institute of Physics.
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页数:3
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