A Model for the Coexistence of p-wave Superconductivity and Ferroelectricity
Hong-Biao Zhang, Li-Jun Tian, Guo-Hong Yang, Shuo Jin, Mo-Lin Ge
Abstract
A model for the coexistence of p-wave superconductivity (SC) and ferroelectricity (FE) is presented. The Hamiltonian of SC sector and FE sector can be diagonalized by using the so(5) and h(4) algebraic coherent states respectively. We assume a minimal symmetry-allow coupling and simplify the total Hamiltonian through a double mean-field approximation (DMFA). A variational coherent-state (VCS) trial wave-function is applied for the ground state. It is found that the ferroelectricity gives rise to the magnetic field effect of p-wave superconductivity.
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