Superconductivity in two-dimensional phosphorus carbide (β₀-PC)

Abstract

Two-dimensional (2D) boron has been predicted to show superconductivity. However, intrinsic 2D carbon and phosphorus have not been reported to be superconductors, which has inspired us to study the superconductivity of their mixture. Here we performed first-principles calculations for the electronic structure, phonon dispersion, and electron-phonon coupling of the metallic phosphorus carbide monolayer, β0-PC. The results show that it is an intrinsic phonon-mediated superconductor, with an estimated superconducting temperature Tc of ∼13 K. The main contribution to the electron-phonon coupling is from the out-of-plane vibrations of phosphorus. A Kohn anomaly on the first acoustic branch is observed. The superconducting related physical quantities are found to be tunable by applying strain or by carrier doping.

Preparation and application of polyaniline nanofibers: an overview

“…Thermal treatments have an effect on the transduction of HCl‐doped PANI nanofibers integrated in conductometric devices upon exposure to 1% H 2 (carried by N 2 ) . After drying in N 2 at ca 25 °C for 12 h, sensors based on PANI nanofibers showed a 10% decrease in electrical resistance upon exposure to 1% H 2 .…”

Fraunhofer response and supercurrent spin switching in black phosphorus with strain and disorder

“…Also, it has been found that black phosphorus in both orthorhombic and rhombohedral structures can intrinsically develop superconductivity [21][22][23][24][25][26][27][28][29][30][31] . However, the dominant pairing type in BP has brought up discussions and is still unclear.…”

Novel 2D PC5 with a Dirac Cone and Edge‐Size Dependence

“…[ 45 ] γ‐PC and ‐PC were proposed as alkali‐metal‐ion battery materials. [ 46,47 ] In our previous work, we have also predicted ‐PC to be an intrinsic phonon‐mediated superconductor, with an estimated superconducting temperature of ≈13 K. [ 48 ]…”