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1. Crystal growth and structure and magnetic properties of the 5d oxide [Ca.sub.3]LiOs[O.sub.6]: extended superexchange magnetic interaction in oxide

Author

Youguo Shi, Yanfeng Guo, Shan Yu, Arai, Masao, Sato, Akira, Belik, Alexei A., Yamaura, Kazunari, and Takayama-Muromachi, Eiji

Subjects
Calcium compounds -- Structure, Calcium compounds -- Chemical properties, Calcium compounds -- Magnetic properties, Lithium compounds -- Structure, Lithium compounds -- Chemical properties, Lithium compounds -- Magnetic properties, Osmium -- Chemical properties, Osmium -- Magnetic properties, Osmium -- Thermal properties, X-rays -- Diffraction, X-rays -- Usage, Chemistry
Abstract

Crystals of the compound [Ca.sub.3]LiOs[O.sub.6] are grown by a flux method by using LiCl and KCl, which is followed by single-crystal X-ray diffraction (XRD), low-temperature XRD, and measurements of ac and dc magnetic susceptibility and specific heat. The original superexchange magnetic path Os-O-Os is absent and hence the extended superexchange path (Os-O)-(O-Os) is responsible for the 117 K magnetic order.

Published
2010

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