High-pressure physics provides a powerful means of tuning interatomic interactions, enabling the discovery of novel structural and physical phenomena in materials. Chromium telluride, a transition metal chalcogenide, is particularly responsive to such external stimuli, exhibiting a broad spectrum of pressure-, temperature-, and stoichiometry-dependent properties. One of its defining features is a pressure-induced structural transition from a NiAs-type to an MnP-type phase at approximately 13 GPa, as experimentally reported by previous literature. In this work, we use density functional theory to investigate how the thermal properties — specifically, the lattice thermal conductivity — evolve across this structural transition. The complex interplay between structure and magnetism under pressure highlights the highly tunable and anisotropic nature of CrTe.

Lattice Dynamics Across the High‐Pressure Phase Transition in CrTe

Borghesi, Costanza
Primo
;
Giorgi, Giacomo;Varsano, Daniele;
2026

Abstract

High-pressure physics provides a powerful means of tuning interatomic interactions, enabling the discovery of novel structural and physical phenomena in materials. Chromium telluride, a transition metal chalcogenide, is particularly responsive to such external stimuli, exhibiting a broad spectrum of pressure-, temperature-, and stoichiometry-dependent properties. One of its defining features is a pressure-induced structural transition from a NiAs-type to an MnP-type phase at approximately 13 GPa, as experimentally reported by previous literature. In this work, we use density functional theory to investigate how the thermal properties — specifically, the lattice thermal conductivity — evolve across this structural transition. The complex interplay between structure and magnetism under pressure highlights the highly tunable and anisotropic nature of CrTe.
2026
Istituto Nanoscienze - NANO - Sede Secondaria Modena
CrTe
phase transition
phonons
pressure
thermal conductivity
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/594262
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