Radio-frequency surface impedance of type-II superconductors: Dependence upon the magnitude and angle of an applied static magnetic field

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6985924

Clem, J R; Coffey, M W

The application of a static magnetic field introduces vortices into a type-II superconductor. The dynamic response of these vortices strongly affects the surface impedance (surface resistance and surface reactance) of the superconductor. Using a self-consistent approach for including the influence of the vortices upon the complex-valued radio-frequency penetration depth, we calculate in this paper how the surface impedance depends upon the static magnetic field's magnitude and angle relative to the surface and to the rf magnetic field. The surface resistance is maximized when the induced rf currents are perpendicular to the static field.

• Research Organization: Ames Lab., IA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6985924
• Report Number(s): IS-M-719; CONF-910736--27; ON: DE92040583
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENT DENSITY
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
IMPEDANCE
INDUCTION
MAGNETIC FLUX
PHYSICAL PROPERTIES
RADIATIONS
RADIOWAVE RADIATION
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SURFACE PROPERTIES
SURFACES
TYPE-II SUPERCONDUCTORS