Temperature Dependence of the Lower Critical Field of the Noncentrosymmetric Superconductor α-BiPd

被引：1
|
作者：
Juraszek, Jaroslaw [1 ]
Konczykowski, Marcin [2 ]
Kaczorowski, Dariusz [1 ]
Cichorek, Tomasz [1 ]
机构：
[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland
[2] Inst Polytech Paris, Ecole Polytech, Lab Solides Irradies, CEA DRF IRAMIS, F-91128 Palaiseau, France
来源：
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2023年 / 17卷 / 03期
关键词：
lower critical field; micromagnetometry; singlet-triplet mixing; topological superconductivity; SURFACE;
D O I：
10.1002/pssr.202200423
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Temperature variation of the lower critical Hc1 field in the noncentrosymmetric superconductor alpha-BiPd is probed by local magnetization measurements using Hall micromagnetometry, performed down to 0.3 K in a magnetic field applied along the crystallographic b axis. Below a critical temperature Tc similar or equal to 3.8 K, a conventional Hc1(T) dependence is found, typical for a single-band s-wave superconductor. The obtained data imply an absence of spin-triplet component in the superconducting wavefunction and marginal multiband effects in this material, which contradicts some literature reports.
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页数：6
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