Transport measurements on lateral MgB2/Fe/MgB2 junctions

被引：0
|
作者：
Fabretti, Savio [1 ]
Schaefers, Markus [1 ]
Schebaum, Oliver [1 ]
Thomas, Patrick [1 ]
Thomas, Andy [1 ]
机构：
[1] Univ Bielefeld, Thin Films & Phys Nanostruct, D-33615 Bielefeld Nrw, Germany
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期
关键词：
MGB2; THIN-FILMS; SUPERCONDUCTIVITY;
D O I：
10.1063/1.3671792
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic anisotropy and transport properties of superconducting MgB2 thin films on MgO (100) substrates were studied. The films were prepared by rf/dc-magnetron cosputtering and with in situ annealing temperatures of 650 degrees C. The film orientation was measured by X-ray diffractometry, which revealed a c-axis orientation of the MgB2 films. The critical onset temperature without field cooling is 15.5 K. We found a critical field of 14.73 T parallel to the film plane and 10.79 T perpendicular to the film plane from transport measurements of the dependence of the applied magnetic field. Differential conductance measurements of a lateral MgB2/Fe/MgB2 junction show the Delta(pi) gap and the Delta(sigma) gap. (C) 2012 American Institute of Physics. [doi:10.1063/1.3671792]
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页数：3
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