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Competition between...
Competition between magnetic interactions and structural instabilities leading to itinerant frustration in the triangular lattice antiferromagnet LiCrSe2
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- Nocerino, Elisabetta (författare)
- KTH,Material- och nanofysik
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- Kobayashi, Shintaro (författare)
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo, 679-5198, Japan
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- Witteveen, Catherine (författare)
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, 1211, Geneva, Switzerland; Department of Physics, University of Zürich, Winterthurerstr. 190, 8057, Zürich, Switzerland
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- Forslund, Ola K. (författare)
- Chalmers University of Technology, Department of Physics, Göteborg, SE-412 96, Sweden
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- Matsubara, Nami (författare)
- KTH,Material- och nanofysik
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- Tang, Chiu (författare)
- Diamond House, Harwell Science and Innovation Campus, Fermi Ave, Didcot, OX11 0DE, UK
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- Matsukawa, Takeshi (författare)
- Frontier Research Center for Applied Atomic Sciences, Ibaraki University, 162-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
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- Hoshikawa, Akinori (författare)
- Frontier Research Center for Applied Atomic Sciences, Ibaraki University, 162-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
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- Koda, Akihiro (författare)
- Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan; Department of Materials Structure Science, The Graduate University for Advanced Studies, Tsukuba, Ibaraki, 305-0801, Japan
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- Yoshimura, Kazuyoshi (författare)
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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- Umegaki, Izumi (författare)
- Muon Science Laboratory, Institute of Materials Structure Science, KEK, Tokai, Ibaraki, 319-1106, Japan
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- Sassa, Yasmine (författare)
- Chalmers University of Technology, Department of Physics, Göteborg, SE-412 96, Sweden
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- von Rohr, Fabian O. (författare)
- Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, 1211, Geneva, Switzerland
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- Pomjakushin, Vladimir (författare)
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, 5232, Villigen, PSI, Switzerland
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- Brewer, Jess H. (författare)
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada; TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada
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- Sugiyama, Jun (författare)
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki, 319-1106, Japan, Ibaraki; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
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- Månsson, Martin, As. Prof. 1976- (författare)
- KTH,Material- och nanofysik
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(creator_code:org_t)
- Springer Nature, 2023
- 2023
- Engelska.
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Ingår i: Communications Materials. - : Springer Nature. - 2662-4443. ; 4:1
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- LiCrSe2 constitutes a recent valuable addition to the ensemble of two-dimensional triangular lattice antiferromagnets. In this work, we present a comprehensive study of the low temperature nuclear and magnetic structure established in this material. Being subject to a strong magnetoelastic coupling, LiCrSe2 was found to undergo a first order structural transition from a trigonal crystal system (P3 ¯ m1) to a monoclinic one (C2/m) at T s = 30 K. Such restructuring of the lattice is accompanied by a magnetic transition at T N = 30 K. Refinement of the magnetic structure with neutron diffraction data and complementary muon spin rotation analysis reveal the presence of a complex incommensurate magnetic structure with a up-up-down-down arrangement of the chromium moments with ferromagnetic double chains coupled antiferromagnetically. The spin axial vector is also modulated both in direction and modulus, resulting in a spin density wave-like order with periodic suppression of the chromium moment along the chains. This behavior is believed to appear as a result of strong competition between direct exchange antiferromagnetic and superexchange ferromagnetic couplings established between both nearest neighbor and next nearest neighbor Cr3+ ions. We finally conjecture that the resulting magnetic order is stabilized via subtle vacancy/charge order within the lithium layers, potentially causing a mix of two co-existing magnetic phases within the sample.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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