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Quasi-1D XY antiferromagnet Sr2Ni(SeO3)2Cl2 at Sakai-Takahashi phase diagram

Uniform quasi-one-dimensional integer spin compounds are of interest as a potential realization of the Haldane conjecture of a gapped spin liquid. This phase, however, has to compete with magnetic anisotropy and long-range ordered phases, the implementation of which depends on the ratio of interchai...

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Main Authors: Kozlyakova, Ekaterina (Author) , Moskin, A. V. (Author) , Berdonosov, P. S. (Author) , Gapontsev, V. V. (Author) , Streltsov, S. V. (Author) , Uhlarz, M. (Author) , Spachmann, Sven (Author) , Elghandour, Ahmed (Author) , Klingeler, Rüdiger (Author) , Vasiliev, A. N. (Author)
Format: Article (Journal)
Language:English
Published: 22 July 2021
In: Scientific reports
Year: 2021, Volume: 11, Pages: 1-8
ISSN:2045-2322
DOI:10.1038/s41598-021-94390-3
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1038/s41598-021-94390-3
Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/s41598-021-94390-3
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Author Notes:E.S. Kozlyakova, A.V. Moskin, P.S. Berdonosov, V.V. Gapontsev, S.V. Streltsov, M. Uhlarz, S. Spachmann, A. ElGhandour, R. Klingeler & A.N. Vasiliev
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Summary:Uniform quasi-one-dimensional integer spin compounds are of interest as a potential realization of the Haldane conjecture of a gapped spin liquid. This phase, however, has to compete with magnetic anisotropy and long-range ordered phases, the implementation of which depends on the ratio of interchain J′ and intrachain J exchange interactions and both uniaxial D and rhombic E single-ion anisotropies. Strontium nickel selenite chloride, Sr2Ni(SeO3)2Cl2, is a spin-1 chain system which passes through a correlations regime at Tmax ~ 12 K to long-range order at TN = 6 K. Under external magnetic field it experiences the sequence of spin-flop at Bc1 = 9.0 T and spin-flip transitions Bc2 = 23.7 T prior to full saturation at Bsat = 31.0 T. Density functional theory provides values of the main exchange interactions and uniaxial anisotropy which corroborate the experimental findings. The values of J′/J = 0.083 and D/J = 0.357 place this compound into a hitherto unoccupied sector of the Sakai-Takahashi phase diagram.
Item Description:Im Text ist "2", "3", "2" und "2" tiefgestellt
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Physical Description:Online Resource
ISSN:2045-2322
DOI:10.1038/s41598-021-94390-3

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