Structural study of quasi-one-dimensional vanadium pyroxene LiVSi2O6 single crystals

Ishii, Yuto; Matsushita, Yoshitaka; Oda, Migaku; Yoshida, Hiroyuki

doi:10.1016/j.jssc.2016.11.012


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Structural study of quasi-one-dimensional vanadium pyroxene LiVSi2O6 single crystals

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Title:	Structural study of quasi-one-dimensional vanadium pyroxene LiVSi2O6 single crystals
Authors:	Ishii, Yuto Browse this author
	Matsushita, Yoshitaka Browse this author
	Oda, Migaku Browse this author
	Yoshida, Hiroyuki Browse this author →KAKEN DB
Keywords:	Pyroxene
	Structural phase transition
	Single crystal X-ray diffraction
	Quasi one-dimensional antiferromagnet
Issue Date:	Feb-2017
Publisher:	Elsevier
Journal Title:	Journal of solid state chemistry
Volume:	246
Start Page:	125
End Page:	129
Publisher DOI:	10.1016/j.jssc.2016.11.012
Abstract:	Single crystals of quasi-one-dimensional vanadium pyroxene LiVSi2O6 were synthesized and the crystal structures at 293 K and 113 K were studied using X-ray diffraction experiments. We found a structural phase transition from the room-temperature crystal structure with space group C2/c to a low-temperature structure with space group P2(I)/c, resulting from a rotational displacement of SiO4 tetrahedra. The temperature dependence of magnetic susceptibility shows a broad maximum around 116 K, suggesting an opening of the Haldane gap expected for one-dimensional antiferromagnets with S=1. However, an antiferromagnetic long-range order was developed below 24 K, probably caused by a weak inter-chain magnetic coupling in the compound.
Rights:	©2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Rights:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Type:	article (author version)
URI:	http://hdl.handle.net/2115/72461
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 吉田紘行

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