Pb-Graphene-Pb Josephson Junctions: Characterization in Magnetic Field

被引：9
|
作者：
Borzenets, I. V. [1 ]
Coskun, U. C. [1 ]
Mebrahtu, H. [1 ]
Finkelstein, G. [1 ]
机构：
[1] Duke Univ, Durham, NC 27708 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2012年 / 22卷 / 05期
关键词：
Josephson junctions; superconducting device measurements; superconducting films; superconducting materials; superconductor-normal-superconductor devices;
D O I：
10.1109/TASC.2012.2198472
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We fabricate superconductor-graphene-superconductor Josephson junctions with superconducting regions made of lead (Pb). The critical current through graphene may be modulated by the external magnetic field; the resulting Fraunhofer interference pattern shows several periods of oscillations, suggesting that the junction is uniform. Deviations from the perfect Fraunhofer pattern are observed, and their cause is explained by a simulation that takes into account the sample design.
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页数：4
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