Possible superconductivity in hole-doped BC3

Filipe J. Ribeiro; Marvin L. Cohen

doi:10.1103/PhysRevB.69.212507

← Back to search

Possible superconductivity in hole-doped BC3

Filipe J. Ribeiro, Marvin L. Cohen

DOI 10.1103/PhysRevB.69.212507 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

In this work the superconducting transition temperature of hole-doped BC3 was studied. The total energy, phonon frequencies, and electron-phonon couplings were calculated for different hole doping levels using the ab initio pseudopotential method within the local density approximation. The harmonic and anharmonic phonon frequencies were calculated by using the frozen-phonon approximation. As in MgB2, the electron-phonon coupling between the electronic states in the σ bands and phonon modes associated with bond stretching was found to be very strong. The calculation predicts that the superconducting temperature will increase as a function of doping level.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
BC3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	22	Pressure not reported	unknown
MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	39	Pressure not reported	unknown