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Related Experiment Video

Updated: Jun 2, 2026

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7−δ/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Radio Frequency Magnetron Sputtering of GdBa₂Cu₃O₇₋_δ/ La_0.67Sr_0.33MnO₃ Quasi-bilayer Films on SrTiO₃ (STO) Single-crystal Substrates

Published on: April 12, 2019

Topological magnetic insulators with corundum structure.

Jing Wang¹, Rundong Li, Shou-Cheng Zhang

¹Department of Physics, Tsinghua University, Beijing 100084, China.

Physical Review Letters

|April 27, 2011

Summary

This study explores topological insulators, revealing that antiferromagnetic order can create a topological magnetic insulator phase with axionic excitations. This research advances understanding of novel quantum matter and its potential applications.

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Published on: July 1, 2013

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Last Updated: Jun 2, 2026

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7−δ/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Radio Frequency Magnetron Sputtering of GdBa₂Cu₃O₇₋_δ/ La_0.67Sr_0.33MnO₃ Quasi-bilayer Films on SrTiO₃ (STO) Single-crystal Substrates

Published on: April 12, 2019

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

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Published on: June 28, 2018

Fabrication of Spatially Confined Complex Oxides

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

Area of Science:

Condensed Matter Physics
Quantum Materials
Materials Science

Background:

Topological insulators are quantum states of matter with surface states protected by time-reversal symmetry.
Antiferromagnetic order in topological insulators can lead to axionic excitations.

Purpose of the Study:

To theoretically investigate electronic states in transition metal oxides with corundum structure.
To explore the potential for developing topological magnetic insulator phases.

Main Methods:

Utilized a tight-binding model analysis.
Investigated the roles of spin-orbit and electron-electron interactions.

Main Results:

Predicted that corundum-structure materials can be strong topological insulators.
Showed that electron correlation can induce antiferromagnetic order, forming a topological magnetic insulator phase.

Conclusions:

Materials with corundum structure are promising candidates for topological magnetic insulators.
Axionic excitations are predicted in these systems due to combined topological and magnetic properties.