hide
Free keywords:
-
Abstract:
The BCS (Bardeen–Cooper–Schrieffer, 1957) theory of superconductivity suggests that there is room for higher superconducting critical temperatures ( T c) in metals composed of light elements (such as hydrogen). Materials with reasonably high values of a characteristic phonon frequency and of the electron-phonon coupling constant are favorable for the search for a higher T c. The recently discovered record T c of 203 K in hydrogen sulfide at 155 GPa confirmed a major result of the theory for conventional superconductors that there is no apparent limits to T c.
