Phase transition from a $d_{x^2-y^2}$ to $d_{x^2-y^2}+d_{xy}$ superconductor

Abstract

We study the phase transition from a $d_{x^2-y^2}$ to $d_{x^2-y^2}+d_{xy}$ superconductor using the tight-binding model of two-dimensional cuprates. As the temperature is lowered past the critical temperature $T_c$, first a $d_{x^2-y^2}$ superconducting phase is created. With further reduction of temperature, the $d_{x^2-y^2}+d_{xy}$ phase is created at temperature $T=T_{c1}$. We study the temperature dependencies of the order parameter, specific heat and spin susceptibility in these mixed-angular-momentum states on square lattice and on a lattice with orthorhombic distortion. The above-mentioned phase transitions are identified by two jumps in specific heat at $T_c$ and $T_{c1}$.

Latex file, 5 pages, 6 postscript figures, Accepted in Physical Review B

References in corpus (6)

• Magnetic Induction of d + i d Order in High-Tc Superconductors
• Self-consistent electronic structure of a $d_{x^2-y^2}$ and a $d_{x^2-y^2}+i{d}_{xy}$ vortex
• C-axis Josephson Tunneling Between YBCO and Pb: Direct Evidence for Mixed Order Parameter Symmetry in a High-T_c Superconductor
• Phase transition from a $d_{x^2-y^2}$ to $d_{x^2-y^2}+i{d}_{xy}$ superconductor
• Universal scaling in BCS superconductivity in three dimensions in non-$s$ waves
• Nonlinear Magnetization in Superconductors with s+d Ordering

Cited by in corpus (4)

• Ultra-cold Fermi gases with resonant dipole-dipole interaction
• Lindblad master equation approach to the dissipative quench dynamics of planar superconductors
• Mixing of superconducting $d_{x^2-y^2}$ state with s-wave states for different filling and temperature
• Mixing of $d_{x^2-y^2}$ and $d_{xy}$ superconducting states for different filling and temperature