Pressure-induced insulator-metal transition in two-dimensional Mott insulator NiPS3

Abstract

The pressure-induced insulator to metal transition (IMT) of layered magnetic nickel phosphorous tri-sulfide NiPS3 was studied in-situ under quasi-uniaxial conditions by means of electrical resistance (R) and X-ray diffraction (XRD) measurements. This sluggish transition is shown to occur at 35 GPa. Transport measurements show no evidence of superconductivity to the lowest measured temperature (~ 2 K). The structure results presented here differ from earlier in-situ work that subjected the sample to a different pressure state, suggesting that in NiPS3 the phase stability fields are highly dependent on strain. It is suggested that careful control of the strain is essential when studying the electronic and magnetic properties of layered van der Waals solids.

References in corpus (5)

• Ising-Type Magnetic Ordering in Atomically Thin FePS3
• Coupling the valley degree of freedom to antiferromagnetic order
• The magnetic properties and structure of the quasi-two-dimensional antiferromagnet CoPS${}_3$
• Pyrochlore Oxide Superconductor Cd2Re2O7 Revisited
• Dimensional Crossover Tuned by Pressure in Layered Magnetic NiPS3

Cited by in corpus (1)

• Pressure-Induced Insulator-to-Metal Transition in van der Waals compound CoPS${}_3$