Year: 2026
Type: article
Abstract: Chromium antimonide has emerged as a key material platform for studying altermagnetism because of its simple binary composition, high Néel temperature, and semimetallic electronic structure. Here, we investigate electrical and thermal magnetotransport in single-crystalline CrSb using steady- and pulsed-magnetic fields up to 65 T, and complement these measurements with neutron diffraction and magnetization data. We confirm the compensated magnetic structure and observe a large nonsaturating magnetoresistance together with a pronounced nonlinear Hall response at low temperatures. Multicarrier modeling, supported by mobility-spectrum analysis, reveals coexisting electron- and holelike charge carriers with mobilities up to ∼ 3000 cm 2 / Vs and shows that the number of transport channels that can be resolved strongly depends on the accessible magnetic-field range. Thermal-transport measurements further reveal a nonlinear thermal Hall response and a thermal conductivity substantially exceeding a simple Wiedemann-Franz law. The broadly similar field and temperature evolution of electrical and thermal transport point to a dominant electronic contribution, while the remaining deviations indicate additional heat-carrying channels.
Source: Physical Review Materials
DOI: 10.1103/xn7y-df6x
Authors: Sajal Naduvile Thadathil, Christoph Müller, Reza Firouzmandi, Lorenz Farin, Srikanta Goswami, Antonin Badura, Pascal Manuel, Fabio Orlandi, Philipp Ritzinger, Václav Petříček, Marc Uhlarz, Sven Luther, Tommy Kotte, Michal Baj, Marein C. Rahn, Thanassis Speliotis, Markéta Žáčková, Jiří Pospíšil, Bernd Büchner, Jochen Wosnitza, Helena Reichlová, Vilmos Kocsis, Toni Helm, Dominik Kriegner
Institutions: Helmholtz-Zentrum Dresden-Rossendorf, Technische Universität Dresden, Czech Academy of Sciences, Charles University, FZU - Institute of Physics of the Czech Academy of Sciences, Leibniz Institute for Solid State and Materials Research, ISIS Neutron and Muon Source, University of Warsaw
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: UK Research and Innovation, European Commission, Deutsche Forschungsgemeinschaft, Ministerstvo Školství, Mládeže a Tělovýchovy, Grantová Agentura České Republiky, Max-Planck-Gesellschaft, Akademie Věd České Republiky, Science and Technology Facilities Council, Staatssekretariat für Bildung, Forschung und Innovation
OpenAlex ID: W7143341874