High-field multifrequency ESR in the S=5/2 kagome-lattice antiferromagnet KFe[subscript 3}(OH)[subscript 6](SO[subscript 4])[subscript 2]
Name
Fujita-2012-High-field multifrequency ESR in the.pdf
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Author(s)
Fujita, T.
Yamaguchi, H.
Kimura, S.
Kashiwagi, T.
Hagiwara, M.
Matan, K.
Grohol, D.
Nocera, Daniel G.
Lee, Young S.
Date Issued
March 2012
Journal
Physical Review B
Publisher
American Physical Society
Citation
Fujita, T. et al. “High-field multifrequency ESR in the S=5/2 kagome-lattice antiferromagnet KFe[subscript 3}(OH)[subscript 6](SO[subscript 4])[subscript 2].” Physical Review B 85.9 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
We have performed high-field multifrequency electron spin resonance (ESR) and high-field magnetization measurements in magnetic fields H of up to 53 T on single crystals of the kagome-lattice antiferromagnet KFe[subscript 3](OH)[subscript 6](SO[subscript 4])[subscript 2]. We have analyzed the magnetization curve and the ESR excitation modes for H∥c by using two kinds of anisotropy origins, the Dzyaloshinsky-Moriya (DM) interactions and the single-ion anisotropy, the former of which is inevitable in a kagome-lattice antiferromagnet. We obtained good agreement between experiment and calculation for the case of the DM interactions. In addition, we have clarified the origin of a field-induced metamagnetic transition observed in the magnetization curve and determined the intraplane and interplane exchanges and the DM interaction parameters.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.85.094409
