Pressure-tunable magnetic topological phases in magnetic topological insulator MnSb4Te7

Magnetic topological insulators (TIs), possessing both magnetic order and topological electronic structure, provides an excellent platform to research unusual physical properties. Here, we report a high-pressure study on the anomalous Hall effect of magnetic TI MnSb4Te7 through transports measuremen...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2023-04, Vol.122 (17)
Main Authors: Gao, Lingling, Wu, Juefei, Xi, Ming, Pei, Cuiying, Wang, Qi, Zhao, Yi, Tian, Shangjie, Li, Changhua, Cao, Weizheng, Chen, Yulin, Lei, Hechang, Qi, Yanpeng
Format: Article
Language:English
Subjects:
Antiferromagnetism
Applied physics
Electronic structure
Ferromagnetism
First principles
Hall effect
High pressure
Magnetism
Phase transitions
Physical properties
Topological insulators
Topology
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:Magnetic topological insulators (TIs), possessing both magnetic order and topological electronic structure, provides an excellent platform to research unusual physical properties. Here, we report a high-pressure study on the anomalous Hall effect of magnetic TI MnSb4Te7 through transports measurements combined with first-principle theoretical calculations. We discover that the ground state of MnSb4Te7 experiences a magnetic phase transition from the A-type antiferromagnetic state to ferromagnetic dominating state at 3.78 GPa, although its crystal sustains a rhombohedral phase under high pressures. The anomalous Hall conductance σxyA is dominated by intrinsic mechanism even after the magnetic phase transition. The results shed light on the intriguing magnetism in MnSb4Te7 and pave the way for further studies of the relationship between topology and magnetism in topological materials.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0146605