Spin-lattice instability to a fractional magnetization state in the spinel HgCr $_{2}$ O $_{4}$

Matsuda, Masaaki; Ueda, Hiroaki*; Kikkawa, Akiko*; Tanaka, Yoshikazu*; Katsumata, Koichi*; Narumi, Yasuo*; Inami, Toshiya; Ueda, Yutaka*; Lee, S.-H.*

Cr-CrCr-based spinel compounds ACr $_{2}$ O $_{4}$ (A=Mg, Zn, Cd, and Hg) are so far the best model systems for a network of corner-sharing tetrahedrons with isotropic nearest-neighbor antiferromagnetic interactions. The systems exhibit novel spin-Peierls phase transitions from cubic spin liquid to non-cubic Nel states at low temperatures. Recent bulk magnetization studies on CdCr $_{2}$ O $_{4}$ and HgCr $_{2}$ O $_{4}$ revealed the magnetic field-induced half magnetization plateau states that are stable over a wide range of field. Recent bulk magnetization studies on CdCr $_{2}$ O $_{4}$ and HgCr $_{2}$ O $_{4}$ revealed the magnetic field-induced half magnetization plateau states that are stable over a wide range of field.

Language	:	English
Journal	:	Nature Physics
Volume	:	3
Number	:	6
Pages	:	p.397 - 400
Publication Year/Month	:	2007/06
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Paper URL	:	https://doi.org/10.1038/nphys586
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Article of JAEA R&D Review	:	Anomalous Spin Structure in Frustrated Magnet; Spin-Lattice Coupling Observed by a Neutron Scattering Technique[/]
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Registration No. : AA20060604
JAEA Abstracts No. : 35001187
Paper Submission No. : 2776

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Spin-lattice instability to a fractional magnetization state in the spinel HgCrO

Spin-lattice instability to a fractional magnetization state in the spinel HgCr $_{2}$ O $_{4}$