TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=84863249789&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863249789&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.85.094409
DO - 10.1103/PhysRevB.85.094409
M3 - Article
AN - SCOPUS:84863249789
VL - 85
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 9
M1 - 094409
ER -