Critical temperature of the nonadiabatic superconducting state in mono- and bilayer systems

K. A. Krok; M. M. Adamczyk; A. P. Durajski; R. Szczęśniak

doi:10.1103/PhysRevB.108.054512

← Back to search

Critical temperature of the nonadiabatic superconducting state in mono- and bilayer systems

K. A. Krok, M. M. Adamczyk, A. P. Durajski, R. Szczęśniak

DOI 10.1103/PhysRevB.108.054512 · 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

The electron-phonon interaction can induce the superconducting state in the low-dimensional mono- and bilayer systems. However, the calculated value of the temperature of the transition from the metallic to the superconducting state is greatly affected by the accuracy of the applied model. If taken into account, the vertex corrections to the electron-phonon interaction are usually of significant value due to the low Fermi level of such materials and were found to contribute to the reduction of the calculated value of the critical temperature of the transition. This fact weakens the prospects for the possibility of induction of the nonadiabatic superconducting state at the relatively high critical temperature since an increase either in the electron-phonon coupling constant or in the Debye frequency leads to the simultaneous increase in the corrected Migdal ratio, while influencing the critical temperature to a greater degree.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
H3S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	204	Pressure not reported	unknown
ScH9 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	233	Pressure not reported	unknown
ThH10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	241	Pressure not reported	unknown
LaH10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	288	Pressure not reported	unknown
YH10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	326	Pressure not reported	unknown
H2S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	150	Pressure not reported	unknown
H3S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	203	Pressure not reported	unknown
ThH10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	161	Pressure not reported	unknown
LaH10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	250	Pressure not reported	unknown