Abstract
We studied the phase diagram for a two-dimensional square-lattice -wave superconducting system under an exchange field. According to the spatial configuration of the order parameter, we show that the phase diagram should include the uniform phase, the one-dimensional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, and the two-dimensional FFLO state. The local density of states are calculated and suggested to be signatures to distinguish these phases.
- Received 11 June 2009
DOI:https://doi.org/10.1103/PhysRevB.80.224515
©2009 American Physical Society