Coexistence of magnetic and charge order in a two-component order parameter description of the layered superconductors
arXiv:1408.1317 · doi:10.1088/0953-2048/27/12/124008
Abstract
A two-component order parameter approach for the layered superconductor is shown to form a condensate with magnetic and charge degrees of freedom. This condensate is an inhomogeneous state, topologically stable, that exists without the presence of an applied magnetic field. We show that the charge density in the layers presents hexadecapole moment in its lowest order. Our approach is based on the first order equations that we show here to solve the variational equations for the special temperature defined by the crossing of the superconducting dome and the pseudogap transition line. Time reversal symmetry is broken and the weak local magnetic field produced by this inhomogeneous state falls below the threshold of experimental observation. We find that the charge distribution in the layers has an hexadecapole moment in its lowest order.
References in corpus (10)
- Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
- Polar Kerr Effect Measurements of YBa2Cu3O6+x: Evidence for Broken Symmetry Near the Pseudogap Temperature
- From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
- From a single-band metal to a high-temperature superconductor via two thermal phase transitions
- Evidence for complex order parameter in La_{1.83}Sr_{0.17}CuO_4
- Light Nuclei as Quantized Skyrmions
- Absence of time reversal symmetry breaking in La_{2-x}Sr_{x}CuO_{4}
- Skyrmions in a Doped Antiferromagnet
- Composite charge order in the pseudogap region of the cuprates
- Magnetic torque study of the temperature dependent anisotropy parameter in overdoped superconducting single-crystal YBa_2Cu_3O_7