The Behavior of Superconducting Thin Films in the Presence of Magnetic Fields and Currents

摘要: The general Gor'kov equation in the presence of arbitrary vector potential A(x) is solved for a superconducting thin film on following two assumptions; 1) ordering parameter Ll C\)nstant all over specimen, 2) l/~0~1, where l mean free path an electron and ~0 coherence length pair. It shown that phase transition due to magnetic field always second order. critical determined from condition .d=O.