Tunable vortex Majorana modes controlled by strain in homogeneous LiFeAs

The iron-based superconductors (FeSCs) have recently emerged as a promising single-material Majorana platform by hosting isolated Majorana zero modes (MZMs) at relatively high temperatures. To further verify its Majorana nature and move forward to build topological quantum qubits, it is highly desir...

Full description

Saved in:
Bibliographic Details
Published in:Quantum frontiers 2022-12, Vol.1 (1), Article 20
Main Authors: Liu, Wenyao, Hu, Quanxin, Wang, Xiancheng, Zhong, Yigui, Yang, Fazhi, Kong, Lingyuan, Cao, Lu, Li, Geng, Peng, Yi, Okazaki, Kozo, Kondo, Takeshi, Jin, Changqing, Xu, Jinpeng, Gao, Hong-Jun, Ding, Hong
Format: Article
Language:English
Subjects:
Condensed Matter Physics
Original Article
Physics
Physics and Astronomy
Quantum Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The iron-based superconductors (FeSCs) have recently emerged as a promising single-material Majorana platform by hosting isolated Majorana zero modes (MZMs) at relatively high temperatures. To further verify its Majorana nature and move forward to build topological quantum qubits, it is highly desirable to achieve tunability for MZMs on homogeneous FeSCs. Here, with an in-situ strain device, we can controllably create MZMs on the homogeneous surface of stoichiometric superconductor LiFeAs by altering its chemical potential. The evolution of discrete energy modes inside a strained vortex is found to mimic exactly as the predicted topological vortex case, proving the Majorana nature of emerging zero modes of vortex. More importantly, our work provides a controllable method for MZM in a homogeneous FeSC, and such achievement of tunability of MZMs in the FeSC Majorana-material platform is an important step towards their application in topological quantum computation.
ISSN:2731-6106
2731-6106
DOI:10.1007/s44214-022-00022-w