TY - JOUR
T1 - Thermal and thermoelectric properties of an antiferromagnetic topological insulator MnBi2Te4
AU - Zhang, H.
AU - Xu, C. Q.
AU - Lee, S. H.
AU - Mao, Z. Q.
AU - Ke, X.
N1 - Funding Information:
H.Z. and X.K. acknowledge the financial support by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under DE-SC0019259. C.Q.X. is partially supported by the Start-up funds at Michigan State University. The financial support for sample preparation was provided by the National Science Foundation through the Penn State 2D Crystal Consortium-Materials Innovation Platform (2DCC-MIP) under NSF Cooperative Agreement No. DMR-1539916 and No. 2039351.
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/5/1
Y1 - 2022/5/1
N2 - The discovery of an intrinsic antiferromagnetic topological insulator (AFMTI) in MnBi2Te4 has attracted intense attention, most of which lies in its electrical properties. In this paper, we report electronic, thermal, and thermoelectric transport studies of this newly found AFMTI. The temperature and magnetic field dependence of its resistivity, thermal conductivity, and Seebeck coefficient indicate strong coupling between charge, lattice, and spin degrees of freedom in this system. Furthermore, MnBi2Te4 exhibits a large anomalous Nernst signal, which is associated with nonzero Berry curvature of the field-induced canted antiferromagnetic state.
AB - The discovery of an intrinsic antiferromagnetic topological insulator (AFMTI) in MnBi2Te4 has attracted intense attention, most of which lies in its electrical properties. In this paper, we report electronic, thermal, and thermoelectric transport studies of this newly found AFMTI. The temperature and magnetic field dependence of its resistivity, thermal conductivity, and Seebeck coefficient indicate strong coupling between charge, lattice, and spin degrees of freedom in this system. Furthermore, MnBi2Te4 exhibits a large anomalous Nernst signal, which is associated with nonzero Berry curvature of the field-induced canted antiferromagnetic state.
UR - http://www.scopus.com/inward/record.url?scp=85130080535&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85130080535&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.105.184411
DO - 10.1103/PhysRevB.105.184411
M3 - Article
AN - SCOPUS:85130080535
SN - 2469-9950
VL - 105
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 18
M1 - 184411
ER -