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Effects of substitution on quantum spin system having a nearly non-magnetic state and antiferromagnetic long-range order

Masashi Hase et al 2009 J. Phys.: Conf. Ser. 150 042050 (4pp)   doi: 10.1088/1742-6596/150/4/042050  Help

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Masashi Hase, Kiyoshi Ozawa and Hideaki Kitazawa
National Institute for Materials Science (NIMS), 1–2–1 Sengen, Tsukuba, Ibaraki 305–0047, Japan
E-mail: HASE.Masashi@nims.go.jp

Abstract. The cuprate Cu2CdB2O6 has two Cu sites (Cu1 and Cu2). Cu1 spins are in a nearly non-magnetic state because of formation of AF dimers, while Cu2 spins form antiferromagnetic (AF) long-range order. We investigated effects of substitution of Zn for Cu on magnetism of this cuprate. The reduction in AF transition temperature per Zn is small in comparison with other quasi-one-dimensional antiferromagnets. We consider that the system of the Cu2 spins is a two-leg ladder.

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