Abstract
We discuss the behaviour near Tc of the chemical potential in superconductors
with a dilute gas of interacting fermions. It is shown that at Tc
there exists an anomaly in the chemical potential that distinguishes
superconductors with Δ and EF of comparable magnitude from ordinary
BCS superconductors (Δ EF). We predict the size of the anomaly for
a number of existing superconductors and we argue, that if high-Tc
superconductors are indeed special in the above sense, the anomaly
is well in the observable range and could be used as an experimental
test of the various “exotic” models of the superconducting mechanism.
Users
Please
log in to take part in the discussion (add own reviews or comments).