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.

引用

页数：6

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