Spin-orbit-coupled superconductivity

Shun-Tsung Lo, Shih Wei Lin, Yi Ting Wang, Sheng-Di Lin, C. T. Liang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Superconductivity and spin-orbit (SO) interaction have been two separate emerging fields until very recently that the correlation between them seemed to be observed. However, previous experiments concerning SO coupling are performed far beyond the superconducting state and thus a direct demonstration of how SO coupling affects superconductivity remains elusive. Here we investigate the SO coupling in the critical region of superconducting transition on Al nanofilms, in which the strength of disorder and spin relaxation by SO coupling are changed by varying the film thickness. At temperatures T sufficiently above the superconducting critical temperature T c, clear signature of SO coupling reveals itself in showing a magneto-resistivity peak. When T < T c, the resistivity peak can still be observed; however, its line-shape is now affected by the onset of the quasi two-dimensional superconductivity. By studying such magneto-resistivity peaks under different strength of spin relaxation, we highlight the important effects of SO interaction on superconductivity.

Original languageEnglish
Article number5438
JournalScientific reports
Volume4
DOIs
StatePublished - 25 Jun 2014

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