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Updated: Jan 25, 2026

Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
First principles investigation of topological phase in XMR material TmSb under hydrostatic pressure
Payal Wadhwa1, Shailesh Kumar2,3, Alok Shukla4
1Indian Institute of Technology Ropar, Rupnagar-140001, Punjab, India.
Abstract:
In this article, we report emergence of topological phase in extremely large magnetoresistance (XMR) material TmSb under hydrostatic pressure using first principles calculations. We find that TmSb, a topologically trivial semimetal, undergoes a topological phase transition with band inversion at X point without breaking any symmetry under a hydrostatic pressure of 12 GPa. At 15 GPa, it again becomes topologically trivial with band inversion at [Formula: see text] as well as X point. We find that the pressures corresponding to the topological phase transitions are far below the pressure corresponding to structural phase transition at 25.5 GPa. The reentrant behaviour of topological quantum phase with hydrostatic pressure would help in finding a correlation between topology and XMR effects through experiments.
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