Topological superconductor in quasi-one-dimensional Tl2−xMo6Se6

Bulletin of the American Physical Society

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APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session V13: Majorana Bound States II

2:30 PM–5:30 PM, Thursday, March 8, 2018
LACC Room: 304A

Sponsoring Unit: DMP
Chair: Roman Lutchyn, Microsoft Station Q

Abstract ID: BAPS.2018.MAR.V13.7

Abstract: V13.00007 : Topological superconductor in quasi-one-dimensional Tl_2−xMo₆Se₆

4:06 PM–4:18 PM

Abstract

Presenter:

Shin-Ming Huang
(Department of Physics, National Sun Yat-sen University)

Authors:

Shin-Ming Huang
(Department of Physics, National Sun Yat-sen University)

Chuang-Han Hsu
(Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore)

Suyang Xu
(Department of Physics, Massachusetts Institute of Technology)

Chi-Cheng Lee
(Institute for Solid State Physics, The University of Tokyo)

Shiue-Yuan Shiau
(Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore)

Hsin Lin
(Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore)

Arun Bansil
(Department of Physics, Northeastern University)

Search for topological superconductors would be the most attractive subject among all the topological materials in part because the Majorana fermions they allow at boundaries are of potential applications in quantum computation. In this work, we propose that the quasi-one-dimensional molybdenum selenide compound Tl_2−xMo₆Se₆ is a time-reversal-invariant topological superconductor induced by inter-sublattice pairing. Weak spin-orbit coupling will pin the triplet d vector lying perpendicular to the chain direction and results in the two-dimensional E_2u superconductivity with a concurrent nematic order. We estimate the locking energy of the d vector to be weak and hence the proof of its direction would rely on tunnelling or phase-sensitive measurements.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.V13.7

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Bulletin of the American Physical Society

APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session V13: Majorana Bound States II

Abstract: V13.00007 : Topological superconductor in quasi-one-dimensional Tl2−xMo6Se6

Presenter:

Authors:

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Abstract: V13.00007 : Topological superconductor in quasi-one-dimensional Tl_2−xMo₆Se₆