The structure of the heterogeneous superconducting state is investigated on the basis of the Yang - Mills gage-field theory. Taking magneticf luctuations into account leads to an eddy structure different from the structure in usual superconductors of the second type. The flux quantum of this eddy is calculated. In the system, phase transitions from one heterogeneous superconducting state to another are possible; these are found to be phase transitions of the first type, close to the second type.
Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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