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Abstract
Dynamical spin fluctuations in magnets can be endowed with a slight bent toward left- or right-handed chirality by Dzyaloshinskii-Moriya interactions. However, little is known about the crucial role of lattice geometry on these chiral spin fluctuations and on fluctuation-related transport anomalies driven by the quantum-mechanical (Berry) phase of conduction electrons. Via thermoelectric Nernst effect and electric Hall effect experiments, we detect chiral spin fluctuations in the paramagnetic regime of a kagome lattice magnet; these signals are largely absent in a comparable triangular lattice magnet. Supported by Monte Carlo calculations, we identify lattices with at least two dissimilar plaquettes as most promising for Berry phase phenomena driven by thermal fluctuations in paramagnets.
Citations
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Authors (6)
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Max Hirschberger
- 1RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama
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Jan Masell
- 1RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama
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Taka-hisa Arima
- 1RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama
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Naoto Nagaosa
- 1RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama
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Yoshinori Tokura
- 1RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/PhysRevLett.130.136701
- License
- Copyright (2023 American Physical Society)
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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PHYSICAL REVIEW LETTERS
no. 130,
ISSN: 0031-9007 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Kolincio K., Hirschberger M., Masell J., Arima T., Nagaosa N., Tokura Y.: Kagome Lattice Promotes Chiral Spin Fluctuations// PHYSICAL REVIEW LETTERS -Vol. 130,iss. 13 (2023),
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/physrevlett.130.136701
- Sources of funding:
-
- Opłatę w wysokości 830 USD pokrył Instytut RIKEN
- Verified by:
- Gdańsk University of Technology
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