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Magnetism of CuCdBO: Quantum spin system having a nearly singlet state and antiferromagnetic long-range order

Journal of Applied Physics, ISSN: 0021-8979, Vol: 99, Issue: 8
2006
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Article Description

A 12 magnetization plateau in magnetic fields above 23 T and antiferromagnetic (AF) long-range order (AFLRO) in low fields were observed in Cu2 Cd B2 O6. Experimental results are consistent with quantum Monte Carlo results for an expected spin system. Two kinds of Cu sites [Cu(1) and Cu(2)] are located adjacent to each other. Spins on the Cu(1) sites are in a nearly spin-singlet state and a finite energy is necessary to break the nearly spin-singlet state. Spins on the Cu(2) sites are almost polarized in the 12 plateau region, whereas they form AFLRO in low fields. Therefore, the nearly spin-singlet state and AFLRO coexist adjacently in low fields, but exchange interaction between the Cu(1) and Cu(2) spins is not negligible. © 2006 American Institute of Physics.

Bibliographic Details

Masashi Hase; Masanori Kohno; Hideaki Kitazawa; Osamu Suzuki; Kiyoshi Ozawa; Giyuu Kido; Motoharu Imai; Xiao Hu

AIP Publishing

Physics and Astronomy

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