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001     1034929
005     20250103211012.0
037 _ _ |a FZJ-2025-00042
041 _ _ |a English
100 1 _ |a Su, Yixi
|0 P:(DE-Juel1)130991
|b 0
|u fzj
111 2 _ |a Invited Seminar at IQMT, KIT
|c IQMT, KIT, Karlsruhe
|d 2022-10-26 - 2022-10-26
|w Germany
245 _ _ |a Neutron scattering on magnetic topological materials
260 _ _ |c 2022
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
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336 7 _ |a LECTURE_SPEECH
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336 7 _ |a Talk (non-conference)
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336 7 _ |a Other
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520 _ _ |a Magnetic topological materials, such as magnetic Dirac and Weyl semimetals, and intrinsic magnetic topological insulators, in which topologically non-trivial band structures, magnetism and electronic correlation effects can be intertwined, have recently emerged as an exciting platform to explore exotic states and novel functionalities. As a unique microscopic probe for magnetism, neutron scattering is ideally suited for the investigations of magnetic correlations over a wide range of length and time scales in these emergent quantum materials. In this talk, I will present our recent neutron scattering studies of magnetic topological materials, with the main aim to demonstrate the fascinating interplay between topology, magnetism and electronic correlation. In the Dirac semimetal EuMnBi$_2$, the evidence for the possible impact of magnetism on Dirac fermions is obtained via a detailed neutron diffraction study of the spin-flop transition [1]. In the two-dimensional van der Waals honeycomb ferromagnets CrSiTe$_3$ and CrGeTe$_3$, the exotic topological magnon insulators, the bosonic analogue of topological insulators, have been experimentally realized based on our inelastic neutron scattering study and theoretical analysis of spin-wave excitations [2]. Furthermore, in the magnetic Weyl semimetal Mn$_3$Sn, an unusual magnetic phase transition that is driven by emergent many-body effects can be revealed via our combined polarised neutron scattering study and band-structure calculations [3].[1] F. Zhu, et al., Phys. Rev. Research 2, 043100 (2020).[2] F. Zhu, et al., Sci. Adv. 7, eabi7532 (2021).[3] X. Wang, et al., (submitted).
536 _ _ |a 632 - Materials – Quantum, Complex and Functional Materials (POF4-632)
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536 _ _ |a 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4)
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650 2 7 |a Magnetism
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650 2 7 |a Condensed Matter Physics
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650 1 7 |a Magnetic Materials
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693 _ _ |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz
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693 _ _ |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz
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693 _ _ |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz
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910 1 _ |a Forschungszentrum Jülich
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980 _ _ |a I:(DE-588b)4597118-3
980 _ _ |a UNRESTRICTED

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