High-field magnetization of the 3d heavy-fermion system LiV2O4−δ (δ = 0, 0.08)

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Published 20 December 2002 • Published under licence by IOP Publishing Ltd
, , Citation N Tsujii et al 2003 J. Phys.: Condens. Matter 15 185 DOI 10.1088/0953-8984/15/2/318

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1 National Institute for Materials Science, Sengen 1-2-1, Tsukuba 305-0047, Japan

2 Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan

3 Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8581, Japan

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  1. Received 7 July 2002
  2. Published

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0953-8984/15/2/185

Abstract

Metamagnetic behaviour has been observed in an LiV2O4 powder sample around 38 T at 4.2 K. On the other hand, the magnetization for oxygen deficient LiV2O3.92 shows no indication of metamagnetism up to 40 T, and shows substantially reduced magnetic moment compared to that of LiV2O4. These results suggest that ferromagnetic interaction is strongly enhanced by magnetic fields in LiV2O4, whereas antiferromagnetic interaction is dominant in LiV2O3.92.

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10.1088/0953-8984/15/2/318