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Structure and properties of a quasi-one-dimensional compound BaTiS3 under pressure.
- Source :
-
High Pressure Research . Jun2024, Vol. 44 Issue 2, p95-104. 10p. - Publication Year :
- 2024
-
Abstract
- We report the studies of structure and properties of a quasi-one-dimensional (quasi-1D) compound ${\rm BaTiS}_{3}$ BaTiS 3 under pressure. The poly-crystalline samples are synthesized by solid-state reaction method and single-crystalline samples are produced by chemical vapor transport method. The XRD measurement under ambient pressure confirms the hexagonal structure, which consists of face-sharing octahedral ${\rm TiS}_{6}$ TiS 6 chains along c-axis and displays a quasi-1D feature. When applying pressure, the synchrotron X-ray diffraction experiments show that the sample undergoes a phase transition from hexagonal phase to orthorhombic phase at around 10 GPa due to the zig–zag deformation of ${\rm TiS}_{6}$ TiS 6 chains, while the quasi-1D structure is reserved. At ambient pressure, ${\rm BaTiS}_{3}$ BaTiS 3 exhibits an insulating behavior with a band gap about 0.273 eV. When applying pressure, the sample undergoes a crossover from insulator to metal due to the enhancement of inter-chain electron hopping. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08957959
- Volume :
- 44
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- High Pressure Research
- Publication Type :
- Academic Journal
- Accession number :
- 177218617
- Full Text :
- https://doi.org/10.1080/08957959.2024.2325994