Tuning the electronic and vibrational properties of Sn2P2S

Pressure-induced superconductivity in van der Waals layered semiconductor SnPSe3

“…At the same time, the onset superconducting transition temperature T c of SnPSe 3 continuously increases to the maximum 8.5 K. For the sister compound SnPS 3 , compression drives changes in the electronic band structure and the Fermi surface, inducing metallization and superconductivity. 16 Similarly, pressure enhances the effect of electron–phonon coupling and the T c increases under compression. The difference is that the structural phase transition occurs at lower pressures and the value of T c is higher.…”

“…10,11 It is noteworthy that MPX 3 compounds show diverse and intriguing physical properties; for instance, high carrier mobility, in-plane anisotropy, nonlinear optical response, inherent magnetism, ferroelectricity and superconductivity. 12–16 In addition, they cover a vast range of bandgaps from 1.3 to 4.5 eV, which prominently expand the application of van der Waals layered materials. 17–20…”