Massive electrons resolve the puzzles of room-temperature superconductivity in Superhydrides

The recent discovery of room-temperature superconductivity, under extreme pressure in hydrogen-rich materials, has attracted tremendous attention. The superconductivity of these materials was confirmed by the observation of zero-resistance, isotope effects, effect of magnetic field, and other standard properties. However, some of the experimental features were puzzling as they were not consistent with the known superconductivity theories. In this talk, we present a concept of massive electrons due to the extreme pressure and successfully explain all nonstandard experimental observations. We show that our massive electron concept explains the large effective mass of the quasiparticles, the reason for the high critical temperatures for moderate electron-phonon couplings, and a 3–5 orders of magnitude larger conductivity causing a narrow resistivity broadening at the transition.