Quick Search: Journal  Author  Title/Abstract  Vol./Year 

J. Phys. Soc. Jpn. 78 (2009) 033701 (4 pages)  |Previous Article| |Next Article|  |Table of Contents|
|Full Text PDF: OPEN SELECT (1487K)|

Letters

Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet

Yoshihiko Okamoto, Hiroyuki Yoshida, and Zenji Hiroi

Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581

(Received November 26, 2008; Accepted January 6, 2009; Published February 25, 2009)

A polycrystalline sample of vesignieite BaCu3V2O8(OH)2 comprising a nearly ideal kagome lattice composed of Cu2+ ions carrying spin 1/2 has been synthesized and studied by magnetization and heat capacity measurements. Magnetic susceptibility shows a neither long range order, a spin glass transition nor a spin gap down to 2 K, in spite of a moderately strong antiferromagnetic interaction of J/kB=53 K between nearest-neighbor spins. A broad peak observed at a temperature corresponding to 0.4J in intrinsic magnetic susceptibility indicates a marked development of the short-range order. The ground state of vesignieite is probably a gapless spin liquid or is accompanied by a very small gap less than ∼J/30. ©2009 The Physical Society of Japan

KEYWORDS: kagome lattice, geometrical frustration, Cu compound, magnetic susceptibility
URL: http://jpsj.ipap.jp/link?JPSJ/78/033701/
DOI: 10.1143/JPSJ.78.033701


|Full Text PDF: OPEN SELECT (1487K)|  Citation:

References | Citing Articles (11)

  1. Ch. Waldtmann, H.-U. Everts, B. Bernu, C. Lhuillier, P. Sindzingre, P. Lecheminant, and L. Pierre: Eur. Phys. J. B 2 (1998) 501[CrossRef]; P. Sindzingre, G. Misguich, C. Lhuillier, B. Bernu, L. Pierre, Ch. Waldtmann, and H.-U. Everts: Phys. Rev. Lett. 84 (2000) 2953[APS].
  2. M. P. Shores, E. A. Nytko, B. M. Bartlett, and D. G. Nocera: J. Am. Chem. Soc. 127 (2005) 13462[CrossRef].
  3. Z. Hiroi, M. Hanawa, N. Kobayashi, M. Nohara, H. Takagi, Y. Kato, and M. Takigawa: J. Phys. Soc. Jpn. 70 (2001) 3377[IPAP].
  4. P. Mendels, F. Bert, M. A. de Vries, A. Olariu, A. Harrison, F. Duc, J. C. Trombe, J. S. Lord, A. Amato, and C. Baines: Phys. Rev. Lett. 98 (2007) 077204[APS].
  5. S.-H. Lee, H. Kikuchi, Y. Qiu, B. Lake, Q. Huang, K. Habicht, and K. Kiefer: Nat. Mater. 6 (2007) 853.
  6. F. Bert, S. Nakamae, F. Ladieu, D. L'Hôte, P. Bonville, F. Duc, J.-C. Trombe, and P. Mendels: Phys. Rev. B 76 (2007) 132411[APS]; J. S. Helton, K. Matan, M. P. Shores, E. A. Nytko, B. M. Bartlett, Y. Yoshida, Y. Takano, A. Suslov, Y. Qiu, J.-H. Chung, D. G. Nocera, and Y. S. Lee: Phys. Rev. Lett. 98 (2007) 107204[APS].
  7. M. A. Lafontaine, A. L. Bail, and G. Férey: J. Solid State Chem. 85 (1990) 220[CrossRef].
  8. P. Sindzingre: arXiv:0707.4264[e-print arXiv].
  9. F. Bert, D. Bono, P. Mendels, F. Ladieu, F. Duc, J.-C. Trombe, and P. Millet: Phys. Rev. Lett. 95 (2005) 087203[APS].
  10. H. Yoshida et al.: submitted to J. Phys. Soc. Jpn.
  11. C. Guillemin: C. R. Acad. Sci. Paris 240 (1955) 2331; C. Guillemin and Z. Johan: C. R. Acad. Sci. Paris, Ser. D 282 (1976) 803.
  12. M. Zhesheng, H. Ruilin, and Z. Xiaoling: Dizhi Xuebao 64 (1990) 302 [in Chinese].
  13. N. Elstner and A. P. Young: Phys. Rev. B 50 (1994) 6871[APS].
  14. M. P. Rigol and R. R. P. Singh: Phys. Rev. Lett. 98 (2007) 207204[APS].
  15. Z. Hiroi, H. Yoshida, Y. Okamoto, and M. Takigawa: to be published in J. Phys.: Conf. Ser.
  16. A. Olariu, P. Mendels, F. Bert, F. Duc, J. C. Trombe, M. A. de Vries, and A. Harrison: Phys. Rev. Lett. 100 (2008) 087202[APS].
  17. F. Wang, A. Vishwanath, and Y. B. Kim: Phys. Rev. B 76 (2007) 094421[APS].
|TOP|  |Previous Article| |Next Article|  |Table of Contents| |JPSJ Home|
Copyright © 2010 The Physical Society of Japan
Contact Information