Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors

Etter，Sarah B.1; Huang，Wen2,3; Sigrist，Manfred1

2020-09-01

10.1088/1367-2630/abafe8

NEW JOURNAL OF PHYSICS   影响因子和分区

1367-2630

Chiral superconductors are two-fold degenerate and domains of opposite chirality can form, separated by domain walls. There are indications of such domain formation in the quasi two-dimensional putative chiral p-wave superconductor Sr2RuO4, yet no experiment has explicitly resolved individual domains in this material. In this work, c-axis domain walls lying parallel to the layers in chiral p-wave superconductors are explored from a theoretical point of view. First, using both a phenomenological Ginzburg-Landau and a quasiclassical Bogoliubov-de Gennes approach, a consistent qualitative description of the domain wall structure is obtained. While these domains are decoupled in the isotropic limit, there is a finite coupling in anisotropic systems and the domain wall can be treated as an effective Josephson junction. In the second part, the formation and structure of half-quantum vortices on such c-axis domain walls are discussed.

chiral p-wave domain walls effective Josephson junctions half-quantum vortices sine-Gordon model unconventional superconductivity

SCI ; EI

英语

其他

Swiss National Science Foundation[163186][184739] ; National Science Foundation of China[11904155]

Physics

Physics, Multidisciplinary

WOS:000574556000001

IOP PUBLISHING LTD

20204009299146

Quantum optics ; Vortex flow ; Josephson junction devices ; Seismic waves ; Superconducting materials

Seismology:484 ; Fluid Flow, General:631.1 ; Superconducting Materials:708.3 ; Light/Optics:741.1 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

2-s2.0-85091856214

Scopus

1.Institute for Theoretical Physics,ETH Zurich,Zurich,8093,Switzerland
2.Department of Physics and Astronomy,McMaster University,Hamilton,L8S 4M1,Canada
3.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen, Guangdong,518055,China

Etter，Sarah B.,Huang，Wen,Sigrist，Manfred. Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors[J]. NEW JOURNAL OF PHYSICS,2020,22(9).

Etter，Sarah B.,Huang，Wen,&Sigrist，Manfred.(2020).Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors.NEW JOURNAL OF PHYSICS,22(9).

Etter，Sarah B.,et al."Half-quantum vortices on c-axis domain walls in chiral p-wave superconductors".NEW JOURNAL OF PHYSICS 22.9(2020).