β-Vesignieite BaCu3V2O8(OH)2: a structurally perfect S = 1/2 kagomé antiferromagnet

Hiroyuki Yoshida; Yuichi Michiue; Eiji Takayama-Muromachi; Masaaki Isobe

doi:10.1039/C2JM32250A

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β-Vesignieite BaCu₃V₂O₈(OH)₂: a structurally perfect S = 1/2 kagomé antiferromagnet†

Hiroyuki Yoshida,*^a Yuichi Michiue,^a Eiji Takayama-Muromachi^a and Masaaki Isobe^a

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* Corresponding authors

^a National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
E-mail: YOSHIDA.Hiroyuki@nims.go.jp
Fax: +81-29-860-4674
Tel: +81-29-851-3354 (ext. 8884)

Abstract

A novel copper mineral β-vesignieite BaCu₃V₂O₈(OH)₂ with trigonal symmetry has been synthesized for the first time using a hydrothermal technique. β-Vesignieite is an ideal spin-1/2 kagomé antiferromagnet. Antiferromagnetic long-range order is found at 9 K, probably due to a finite Dzyaloshinski–Moriya interaction caused by the kagomé symmetry.

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Article information

DOI: https://doi.org/10.1039/C2JM32250A
Article type: Communication
Submitted: 11 Apr 2012
Accepted: 29 Jul 2012
First published: 01 Aug 2012

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J. Mater. Chem., 2012,22, 18793-18796

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β-Vesignieite BaCu₃V₂O₈(OH)₂: a structurally perfect S = 1/2 kagomé antiferromagnet

H. Yoshida, Y. Michiue, E. Takayama-Muromachi and M. Isobe, J. Mater. Chem., 2012, 22, 18793 DOI: 10.1039/C2JM32250A

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Journal of Materials Chemistry