Z. Tesanovic et Pd. Sacramento, LANDAU-LEVELS AND QUASI-PARTICLE SPECTRUM OF EXTREME TYPE-II SUPERCONDUCTORS, Physical review letters, 80(7), 1998, pp. 1521-1524
At high magnetic fields and low temperatures, numerous extreme type-II
superconductors exhibit Landau quantization of electronic motion. We
present an analytic construction of the quasiparticle spectrum in this
regime, based on the high-field expansion. The spectrum is gapless an
d is separated from the familiar low-field regime by a quantum level-c
rossing transition. Such low energy excitations should lead to observa
ble effects in thermodynamics and transport.