Magnons and magnetic fluctuations in atomically thin MnBi2Te4

David Lujan; Jeongheon Choe; Martin Rodriguez-Vega; Zhipeng Ye; Aritz Leonardo; T. Nathan Nunley; Liang-Juan Chang; Shang-Fan Lee; Jiaqiang Yan; Gregory A. Fiete; Rui He; Xiaoqin Li

doi:10.1038/s41467-022-29996-w

Nature Communications (May 2022)

Magnons and magnetic fluctuations in atomically thin MnBi2Te4

David Lujan,
Jeongheon Choe,
Martin Rodriguez-Vega,
Zhipeng Ye,
Aritz Leonardo,
T. Nathan Nunley,
Liang-Juan Chang,
Shang-Fan Lee,
Jiaqiang Yan,
Gregory A. Fiete,
Rui He,
Xiaoqin Li

Affiliations

David Lujan: Department of Physics and Center for Complex Quantum Systems, The University of Texas at Austin
Jeongheon Choe: Department of Physics and Center for Complex Quantum Systems, The University of Texas at Austin
Martin Rodriguez-Vega: Theoretical Division, Los Alamos National Laboratory
Zhipeng Ye: Department of Electrical and Computer Engineering, Texas Tech University
Aritz Leonardo: Donostia International Physics Center
T. Nathan Nunley: Department of Physics and Center for Complex Quantum Systems, The University of Texas at Austin
Liang-Juan Chang: Department of Physics and Center for Complex Quantum Systems, The University of Texas at Austin
Shang-Fan Lee: Institute of Physics, Academia Sinica
Jiaqiang Yan: Materials Science and Technology Division, Oak Ridge National Laboratory
Gregory A. Fiete: Department of Physics, Northeastern University
Rui He: Department of Electrical and Computer Engineering, Texas Tech University
Xiaoqin Li: Department of Physics and Center for Complex Quantum Systems, The University of Texas at Austin

DOI: https://doi.org/10.1038/s41467-022-29996-w
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 7

Abstract

Read online

MnBi2Te4, referred to as MBT, is a van der Waals material combining topological electron bands with magnetic order. Here, Lujan et al study collective spin excitations in MBT, and show that magnetic fluctuations increase as samples reduce in thickness, implying less robust magnetic order.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

About the journal