Field induced superconductivity with enhanced and tunable paramagnetic limit
arXiv:cond-mat/0505726 · doi:10.1103/PhysRevLett.95.167003
Abstract
We demonstrate that in a superconducting multilayered system with alternating interlayer coupling a new type of nonuniform superconducting state can be realized under in-plane magnetic field. The Zeeman effect in this state is compensated by the energy splitting between bonding and antibonding levels. Such compensation mechanism at low temperature leads to the field-induced superconductivity. We discuss the conditions for the experimental observation of the predicted phenomena.
5 pages, 4 figures included