2017年3月
Structural deformation of the S=1 kagome-lattice compound KV3Ge2O9
PHYSICAL REVIEW B
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- 巻
- 95
- 号
- 10
- 開始ページ
- 104416
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.95.104416
- 出版者・発行元
- AMER PHYSICAL SOC
The dielectric and structural properties of the S = 1 kagome antiferromagnet KV3Ge2O9 are examined. The low-temperature structure below 50 K is orthorhombic with a typical correlation length of 8 nm. While the high-temperature hexagonal phase can be considered C-centered orthorhombic, the C-centered symmetry is broken below 50 K. The low-temperature symmetry does not support the simplex solid state, which is the theoretically expected ground state for the S = 1 kagome lattice. Above 60 K, incommensurate lattice modulation is observed. The lock-in transition suggests that the origin of the orthorhombic deformation is the development of a short-range magnetic ordering.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevB.95.104416
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000396273200001