BROWSE

ITEM VIEW & DOWNLOAD

Berezinskii-Kosterlitz-Thouless transition transport in spin-triplet superconductor

Cited 0 time in webofscience Cited 0 time in scopus
10 Viewed 0 Downloaded
Title
Berezinskii-Kosterlitz-Thouless transition transport in spin-triplet superconductor
Author(s)
Suk Bum Chung; Kim, S.K.
Publication Date
2022-01
Journal
SciPost Physics Core, v.5, no.1
Publisher
Institute of Economic Research, Nicolaus Copernicus University
Abstract
As the spin-triplet superconductivity arises from the condensation of spinful Cooper pairs, its full characterization requires not only charge ordering, but also spin ordering. For a two-dimensional (2D) easy-plane spin-triplet superconductor, this naïvely seems to suggest the possibility of two distinct Berezinskii-Kosterlitz-Thouless (BKT) phase transitions, one in the charge sector and the other in the spin sector. However, it has been recognized that there are actually three possible BKT transitions, involving the deconfinement of, respectively, the conventional vortices, the merons and the half-quantum vortices with vorticity in both the charge and the spin current. By considering equal-spin-pairing spin-triplet superconductors with bulk spin degeneracy, we show how all the transitions can be characterized by the relation between the voltage drop and the spin-polarized current bias. This study reveals that, due to the hitherto unexamined transport of half-quantum vortices, there is an upper bound on the spin supercurrent in a quasi-long range ordered spin-triplet superconductor, which provides a means for half-quantum vortex detection via transport measurements and deeper understanding of fluctuation effects in superconductor-based spintronic devices. Copyright S. B. Chung and S. K. Kim.
URI
https://pr.ibs.re.kr/handle/8788114/12145
DOI
10.21468/SciPostPhysCore.5.1.003
ISSN
2666-9366
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse