Electrical and thermal magnetotransport in altermagnetic CrSb
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866910076922494976 |
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| author | Thadathil, Sajal Naduvile Müller, Christoph Firouzmandi, Reza Farin, Lorenz Goswami, Srikanta Badura, Antonin Manuel, Pascal Orlandi, Fabio Ritzinger, Philipp Petříček, Václav Uhlarz, Marc Kotte, Tommy Baj, Michal Rahn, Marein C. Speliotis, Thanassis Žáčková, Markéta Pospíšil, Jiří Büchner, Bernd Wosnitza, Jochen Reichlová, Helena Kocsis, Vilmos Helm, Toni Kriegner, Dominik |
| author_facet | Thadathil, Sajal Naduvile Müller, Christoph Firouzmandi, Reza Farin, Lorenz Goswami, Srikanta Badura, Antonin Manuel, Pascal Orlandi, Fabio Ritzinger, Philipp Petříček, Václav Uhlarz, Marc Kotte, Tommy Baj, Michal Rahn, Marein C. Speliotis, Thanassis Žáčková, Markéta Pospíšil, Jiří Büchner, Bernd Wosnitza, Jochen Reichlová, Helena Kocsis, Vilmos Helm, Toni Kriegner, Dominik |
| contents | 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 hole-like charge carriers with mobilities up to ~3000 cm2/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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_25820 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Electrical and thermal magnetotransport in altermagnetic CrSb Thadathil, Sajal Naduvile Müller, Christoph Firouzmandi, Reza Farin, Lorenz Goswami, Srikanta Badura, Antonin Manuel, Pascal Orlandi, Fabio Ritzinger, Philipp Petříček, Václav Uhlarz, Marc Kotte, Tommy Baj, Michal Rahn, Marein C. Speliotis, Thanassis Žáčková, Markéta Pospíšil, Jiří Büchner, Bernd Wosnitza, Jochen Reichlová, Helena Kocsis, Vilmos Helm, Toni Kriegner, Dominik Materials Science 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 hole-like charge carriers with mobilities up to ~3000 cm2/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. |
| title | Electrical and thermal magnetotransport in altermagnetic CrSb |
| topic | Materials Science |
| url | https://arxiv.org/abs/2603.25820 |