Document Type

Article

Publication Date

2011

Publication Title

Journal of Physics: Conference Series

Abstract

Cs2 CuBr4 and Ba3 NiSb2 O9 are magnetically described as quasi-two-dimensional triangular-lattice antiferromagnets with spin-1 and 1, respectively. We show that both systems 2 exhibit a magnetization plateau at one-third of the saturation magnetization Ms due to the interplay of spin frustration and quantum fluctuation. In Cs2CuBr4 that has a spatially anisotropic triangular lattice, successive magnetic-field induced quantum phase transitions including a magnetization plateau 2 Ms were observed. For Ba3 NiSb2 O9 , we performed exact 3 diagonalization for rhombic spin clusters with up to 21-sites to analyze the magnetization process. The calculated results are in agreement with experimental observations.

Volume

302

DOI

10.1088/1742-6596/302/1/012003

Rights

Published under licence by IOP Publishing Ltd

Included in

Physics Commons

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