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Pressure-modulated lattice structural evolution in TiS
Titanium disulfide (TiS 2 ) has drawn considerable attention in materials, physics, and chemistry thanks to its potential applications in batteries, supercapatteries and thermoelectric devices. However, the simplified and controlled synthesis of high-quality TiS 2 remains a great challenge. In this...
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| Published in: | Physical chemistry chemical physics : PCCP 2023-10, Vol.25 (38), p.26145-26151 |
|---|---|
| Main Authors: | , , , , , , , , , , , |
| Format: | Article |
| Language: | |
| Online Access: | Get full text |
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| Summary: | Titanium disulfide (TiS
2
) has drawn considerable attention in materials, physics, and chemistry thanks to its potential applications in batteries, supercapatteries and thermoelectric devices. However, the simplified and controlled synthesis of high-quality TiS
2
remains a great challenge. In this study, a straightforward widely accessible approach to the one-step chemical vapor transport (CVT) process is presented. Meanwhile, combining high-pressure (HP) Raman spectroscopy measurements and first-principles calculations, the pressure-induced phase transition of TiS
2
from
P
3&cmb.macr;
m
1 phase (phase I) to
C
2/
m
phase (phase II) at 16.0 GPa and then to
P
6&cmb.macr;2
m
phase (phase III) at 32.4 GPa was disclosed. The discovery of HP being within the Weyl semi-metallic phase represents a significant advancement towards understanding the electronic topological states, discovering new physical phenomena, developing new electronic devices, and gaining insight into the properties of elementary particles.
Titanium disulfide (TiS
2
) has drawn considerable attention in materials, physics, and chemistry thanks to its potential applications in batteries, supercapatteries and thermoelectric devices. |
|---|---|
| ISSN: | 1463-9076 1463-9084 |
| DOI: | 10.1039/d3cp03247g |