High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe 3(OH) 6(SO 4) 2

T. Fujita; H. Yamaguchi; S. Kimura; T. Kashiwagi; M. Hagiwara; K. Matan; D. Grohol; D. G. Nocera; Y. S. Lee

doi:10.1103/PhysRevB.85.094409

High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe ₃(OH) ₆(SO ₄) ₂

T. Fujita, H. Yamaguchi, S. Kimura, T. Kashiwagi, M. Hagiwara, K. Matan, D. Grohol, D. G. Nocera, Y. S. Lee

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

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 ₃(OH) ₆(SO ₄) ₂. We have analyzed the magnetization curve and the ESR excitation modes for Hc 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.

Original language	English
Article number	094409
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.85.094409
Publication status	Published - 2012 Mar 6

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.85.094409

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High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe ₃(OH) ₆(SO ₄) ₂ . / Fujita, T.; Yamaguchi, H.; Kimura, S.; Kashiwagi, T.; Hagiwara, M.; Matan, K.; Grohol, D.; Nocera, D. G.; Lee, Y. S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 9, 094409, 06.03.2012.

Research output: Contribution to journal › Article › peer-review

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title = "High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe 3(OH) 6(SO 4) 2 ",

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 3(OH) 6(SO 4) 2. We have analyzed the magnetization curve and the ESR excitation modes for Hc 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.",

author = "T. Fujita and H. Yamaguchi and S. Kimura and T. Kashiwagi and M. Hagiwara and K. Matan and D. Grohol and Nocera, {D. G.} and Lee, {Y. S.}",

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T1 - High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe 3(OH) 6(SO 4) 2

AU - Fujita, T.

AU - Yamaguchi, H.

AU - Kimura, S.

AU - Kashiwagi, T.

AU - Hagiwara, M.

AU - Matan, K.

AU - Grohol, D.

AU - Nocera, D. G.

AU - Lee, Y. S.

PY - 2012/3/6

Y1 - 2012/3/6

N2 - 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 3(OH) 6(SO 4) 2. We have analyzed the magnetization curve and the ESR excitation modes for Hc 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.

AB - 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 3(OH) 6(SO 4) 2. We have analyzed the magnetization curve and the ESR excitation modes for Hc 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.

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High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe ₃(OH) ₆(SO ₄) ₂

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