Year: 2021
Type: review
Abstract: The recent discoveries of strikingly large zero-field Hall and Nernst effects in antiferromagnets Mn3X (X = Sn, Ge) have brought the study of magnetic topological states to the forefront of condensed matter research and technological innovation. These effects are considered fingerprints of Weyl nodes residing near the Fermi energy, promoting Mn3X (X = Sn, Ge) as a fascinating platform to explore the elusive magnetic Weyl fermions. In this review, we provide recent updates on the insights drawn from experimental and theoretical studies of Mn3X (X = Sn, Ge) by combining previous reports with our new, comprehensive set of transport measurements of high-quality Mn3Sn and Mn3Ge single crystals. In particular, we report magnetotransport signatures specific to chiral anomalies in Mn3Ge and planar Hall effect in Mn3Sn, which have not yet been found in earlier studies. The results summarized here indicate the essential role of magnetic Weyl fermions in producing the large transverse responses in the absence of magnetization.
Source: Nature Communications
Authors: Taishi Chen, Takahiro Tomita, Susumu Minami, Mingxuan Fu, Takashi Koretsune, Motoharu Kitatani, Ikhlas Muhammad, Daisuke Nishio-Hamane, Rieko Ishii, Fumiyuki Ishii, Ryotaro Arita, Satoru Nakatsuji
Institutions: The Institute for Solid State Physics, The University of Tokyo, The University of Tokyo, Japan Science and Technology Agency, Kanazawa University, RIKEN Center for Emergent Matter Science, Nanomaterials Research Institute, Kanazawa University, Tohoku University, Johns Hopkins University, Trans-Scale Quantum Science Institute
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,560
Funders: U.S. Department of Energy, Ministry of Education, Culture, Sports, Science and Technology, University of Tokyo, Office of Science, Japan Society for the Promotion of Science, Japan Science and Technology Agency, Basic Energy Sciences, Core Research for Evolutional Science and Technology, JST-Mirai Program
Awards: G1016272432, G1349005098, G1503794471, G1836493034, G1924876975, G2302631520, G2521286739, INSTITUTE FOR QUANTUM MATTER, 電子構造のトポロジーを利用した機能性磁性材料の開発とデバイス創成, G347449492, INSTITUTE FOR QUANTUM MATTER, G3543480828, Experimental Study of Novel Quantum Phases and Criticality in Multipolar Kondo Materials, G3741640041, G3820934480, G3969676843, G4062527828, G4153140681, G4297752223, G4704929803, G5341212650, G5381908333, Experimental study of topological phases in strongly correlated system, G6240982132, G6718509927, G6770061744, スピントロニクス光電インターフェースの基盤技術の創成, G7137355662, G7167104601, G7257739835, G7387215943, G7879866177, G8164862562, Search for high-efficiency thermoelectric magnetic material and establish design guide principles, G8886742239, G8947547870
OpenAlex ID: W3110522764