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

• Ishii, Yuto

• Matsushita, Yoshitaka

• Oda, Migaku

• Yoshida, Hiroyuki

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.

Journal

• Journal of solid state chemistry

  Journal of solid state chemistry 246 125-129, 2017-02

  Elsevier

Keywords

• Pyroxene
• Structural phase transition
• Single crystal X-ray diffraction
• Quasi one-dimensional antiferromagnet

Details

• CRID: 1050282814032833152
• NII Article ID: 120006551572
• DOI: 10.1016/j.jssc.2016.11.012
• HANDLE: 2115/72461
• ISSN: 00224596
• Web Site: https://api.elsevier.com/content/article/PII:S0022459616304510?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0022459616304510?httpAccept=text/plain
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN