12-06-2012, 02:32 PM
SEMINAR FOR TYPES OF SUPERCONDUCTORS
TYPES OF SUPERCONDUCTORS.doc (Size: 104 KB / Downloads: 40)
TYPE 1
For Type 1 below a critical field called HC, which increases as the temperature decreases above TC, the magnetic flux is excluded from the interior of the material, which is said to be perfectly diamagnetic. If applied field increases above HC, it ceases to be a superconductor and the flux penetrates it completely.
TYPE 2
For type 2 super conductors there are two critical fields HC1 and HC2. If the applied field is less than the critical field Hc1, the superconductor completely excludes the field from the interior, just as type 1. At just above HC1, flux starts to penetrate the material through microscopic filaments called fluxoids or vorticers.