Backward Scattering and Coexistent State in Two-Dimensional Electron System
Abstract
The results of the mean field studies on the effects of the backward scattering with large momentum transfer in a two-dimensional electron system are extended to the case with various types of the Fermi surface and coupling constants. It is found that the coexistent state of d-wave superconductivity, antiferromagnetism and π-triplet pair can be stabilized quite generally near half filling.
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