Magnetic-field-independent superconductivity of ultrathin Pb films on cleaved GaAs surface

被引：4
|
作者：
Sekihara, Takayuki [1 ]
Masutomi, Ryuichi [1 ]
Okamoto, Tohru [1 ]
机构：
[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
来源：
20TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF HIGH MAGNETIC FIELDS IN SEMICONDUCTOR PHYSICS (HMF-20) | 2013年 / 456卷
关键词：
METAL;
D O I：
10.1088/1742-6596/456/1/012034
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We performed magnetotransport measurements on ultathin Pb films deposited onto cleaved GaAs surface and observed two-dimensional superconductivity for an amorphous 2.2-angstrom-thick film, which is below one monolayer. The superconducting transition is almost independent of parallel magnetic field as high as 14 T. This means that the superconducting state has much larger critical magnetic field than Pauli paramagnetic limit. We consider two different mechanism relating Rashba spin splitting.
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页数：5
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