de Haas-van Alphen Effect in Anisotropic Superconductors in Magnetic Fields Well Below Hc2
Abstract
We develop a quasiclassical approach to the energy spectrum of an anisotropic superconductor in a magnetic field, B, such that Hc1<<B<<Hc2. Low temperature de Haas-van Alphen oscillations are considered for two cases: (1) the extremal electron orbit may coincide with a symmetry line and (2) the orbit crosses points where the superconducting order parameter has zeros. The signal is shown to be small in both cases.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1998
- DOI:
- 10.1103/PhysRevLett.80.3360
- Bibcode:
- 1998PhRvL..80.3360G