Quantum oscillation in vortex states of type-II superconductors
- Groupe de Physique des Solides, Universite Paris 7, Tour 23, 2 place Jussieu, 75251 Paris CEDEX (France)
We examine theoretically magnetic quantum oscillations like the de Haas--van Alphen and Subnikov--de Haas effects in vortex states in type-II superconductors. For a magnetic field {ital B} not very small compared with {ital H}{sub {ital c}3}({ital T}), the main effect of superconductivity is introduction of the extra quasiparticle scattering rate proportional to {vert bar}{Delta}{vert bar}{sup 2}, the square of the superconducting order parameter. Therefore the detectability of the magnetic quantum oscillation is determined from the condition that the extra Dingle temperature due to {vert bar}{Delta}{vert bar}{sup 2} is not too large. For example in a magnetic field {similar to}10 T, the superconducting transition temperature {ital T}{sub {ital c}} has to be less than 30 K in order to have a reasonable signal.
- OSTI ID:
- 5252276
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Vol. 44:6; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
TYPE-II SUPERCONDUCTORS
DE HAAS-VAN ALPHEN EFFECT
DIAMAGNETISM
MAGNETIC FIELDS
QUASI PARTICLES
SCATTERING
TRANSITION TEMPERATURE
MAGNETISM
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
656100* - Condensed Matter Physics- Superconductivity