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Tunable anomalous Hall conductivity through volume-wise magnetic competition in a topological kagome magnet

Guguchia, Z ; Verezhak, J A T ; Gawryluk, D J ; Tsirkin, S S ; Yin, J-X ; Belopolski, I ; Zhou, H ; Simutis, G ; Zhang, S-S ; Cochran, T A ; Chang, G ; Pomjakushina, E ; Keller, L ; Skrzeczkowska, Z ; Wang, Q ; Lei, H C ; Khasanov, R ; Amato, A ; Jia, S ; Neupert, T ; Luetkens, H ; Hasan, M Z

Nature communications, 2020-01, Vol.11 (1), p.559-559, Article 559 [Periódico revisado por pares]

England: Nature Publishing Group

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Título:
Tunable anomalous Hall conductivity through volume-wise magnetic competition in a topological kagome magnet
Autor: Guguchia, Z ; Verezhak, J A T ; Gawryluk, D J ; Tsirkin, S S ; Yin, J-X ; Belopolski, I ; Zhou, H ; Simutis, G ; Zhang, S-S ; Cochran, T A ; Chang, G ; Pomjakushina, E ; Keller, L ; Skrzeczkowska, Z ; Wang, Q ; Lei, H C ; Khasanov, R ; Amato, A ; Jia, S ; Neupert, T ; Luetkens, H ; Hasan, M Z
Assuntos: Antiferromagnetism ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; Competition ; Conductivity ; Crystal structure ; External pressure ; Ferromagnetism ; Hall effect ; Hydrostatic pressure ; Kagome lattice ; Laboratories ; Magnetic fields ; Magnetic properties ; magnetic properties and materials ; Magnets ; Morphology ; Muon spin rotation ; Phase separation ; Physics ; Spectrum analysis ; topological insulators ; Topology ; Tuning
É parte de: Nature communications, 2020-01, Vol.11 (1), p.559-559, Article 559
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
AC02-05CH11231; FG-02-05ER46200; 2016YFA0300504; 11574394; 11774423; 11822412; ERC-StG-Neupert-757867-PARATOP; 206021_139082; GBMF4547
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Swiss National Science Foundation (SNSF)
Gordon and Betty Moore Foundation
European Research Council (ERC)
National Natural Science Foundation of China (NSFC)
National Key Research and Development Program of China
Descrição: Magnetic topological phases of quantum matter are an emerging frontier in physics and material science. Along these lines, several kagome magnets have appeared as the most promising platforms. Here, we explore magnetic correlations in the kagome magnet Co Sn S . Using muon spin-rotation, we present evidence for competing magnetic orders in the kagome lattice of this compound. Our results show that while the sample exhibits an out-of-plane ferromagnetic ground state, an in-plane antiferromagnetic state appears at temperatures above 90 K, eventually attaining a volume fraction of 80% around 170 K, before reaching a non-magnetic state. Strikingly, the reduction of the anomalous Hall conductivity (AHC) above 90 K linearly follows the disappearance of the volume fraction of the ferromagnetic state. We further show that the competition of these magnetic phases is tunable through applying either an external magnetic field or hydrostatic pressure. Our results taken together suggest the thermal and quantum tuning of Berry curvature induced AHC via external tuning of magnetic order.
Editor: England: Nature Publishing Group
Idioma: Inglês

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Tunable anomalous Hall conductivity through volume-wise magnetic competition in a topological kagome magnet

Guguchia, Z ; Verezhak, J A T ; Gawryluk, D J ; Tsirkin, S S ; Yin, J-X ; Belopolski, I ; Zhou, H ; Simutis, G ; Zhang, S-S ; Cochran, T A ; Chang, G ; Pomjakushina, E ; Keller, L ; Skrzeczkowska, Z ; Wang, Q ; Lei, H C ; Khasanov, R ; Amato, A ; Jia, S ; Neupert, T ; Luetkens, H ; Hasan, M Z

England: Nature Publishing Group

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