Little-Parks oscillation and d-vector texture in spin-triplet superconducting rings with bias current

Article

关键词: FLUXOID QUANTIZATION;    QUANTUM;   

DOI  :  10.1103/PhysRevB.106.L060502

来源: SCIE

【 摘 要 】

We theoretically investigate the critical bias current j(c) for a superconducting (SC) ring in a magnetic field. Based on the Ginzburg-Landau theory, we show that j(c) exhibits a Little-Parks (LP) oscillation as a function of the magnetic flux passing through the ring, similarly to the LP oscillation in the SC transition temperature. It is also found that for a spin-triplet SC ring, the d vector rotates to yield a larger j(c), forming a texture along the circumference of the ring. Experimental implications of our result are discussed.

【 授权许可】

Free