Anisotropic superconductivity in the noncentrosymmetric BiPd
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Author: L. Jiao, J. L. Zhang, Y. Chen, Z. F. Weng, Y. M. Shao, J. Y. Feng, X. Lu, B. Joshi, A. Thamizhavel, S. Ramakrishnan, H. Q. Yuan
Added by: arkiver
Added Date: 2018-06-30
Subjects: Superconductivity, Condensed Matter
Publishers: arXiv.org
PDF Count: 1
Total Size: 742.07 KB
PDF Size: 717.88 KB
Extensions: pdf, torrent
Contributor: Internet Archive
License: Unknown License
Downloads: 21
Views: 71
Total Files: 6
Media Type: texts
Total Files: 2
Description
We report measurements of London penetration depth $\lambda(T)$ for the noncentrosymmetric superconductor BiPd by using a tunnel diode oscillator. Pronounced anisotropic behavior is observed in the low-temperature penetration depth; the in-plane penetration depth $\lambda_{ac}(T)$ follows an exponential decrease, but the interplane penetration depth $\lambda_b(T)$ shows power-law-type behavior. The superfluid density $\rho_s(T)$, converted from the penetration depth $\lambda(T)$, is best fitted by an anisotropic two-band BCS model. We argue that such a complex order parameter is attributed to the admixture of spin-singlet and spin-triplet pairing states as a result of antisymmetric spin-orbit coupling in BiPd.
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