Pressure-induced semimetal-metal and metal-metal transitions in 1T and 2H TaS2
- 21 July 1974
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 7 (14) , L249-L253
- https://doi.org/10.1088/0022-3719/7/14/001
Abstract
The reversible transition from the semimetallic (1T2) to the metallic (1T1) octahedral form of the layer crystal TaS2 which takes place on heating at 325 K is investigated at pressures up to 60 kbar and in the temperature range 170-330 K. Resistivity data as a function of temperature reveal a semimetal-metal transition under pressure within the 1T2 phase, and a model to account for this result is proposed. A new shear-induced transition under pressure in the trigonal prism metal 2H TaS2 is described, and the resistivity values suggest that 1T1 is the resultant phase at high pressure.Keywords
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