Publication: High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe 3(OH) 6(SO 4) 2
Issued Date
2012-03-06
Resource Type
ISSN
1550235X
10980121
10980121
Other identifier(s)
2-s2.0-84863249789
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Physical Review B - Condensed Matter and Materials Physics. Vol.85, No.9 (2012)
Suggested Citation
T. Fujita, H. Yamaguchi, S. Kimura, T. Kashiwagi, M. Hagiwara, K. Matan, D. Grohol, D. G. Nocera, Y. S. Lee High-field multifrequency ESR in the S=52 kagome-lattice antiferromagnet KFe 3(OH) 6(SO 4) 2. Physical Review B - Condensed Matter and Materials Physics. Vol.85, No.9 (2012). doi:10.1103/PhysRevB.85.094409 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/14380
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
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. © 2012 American Physical Society.