Lattices of double-quanta vortices and chirality inversion in $p_x+i{p}_y$ superconductors

Abstract

We investigate the magnetization processes of a standard Ginzburg-Landau model for chiral p-wave superconducting states in an applied magnetic field. We find that the phase diagram is dominated by triangular lattices of doubly quantized vortices. Only in close vicinity to the upper critical field, the lattice starts to dissociate into a structure of single-quanta vortices. The degeneracy between states with opposite chirality is broken in a nonzero field. If the magnetization starts with an energetically unfavorable chirality, the process of chirality-inversion induced by the external magnetic field results in the formation of a sequence of metastable states with characteristic magnetic signatures that can be probed by standard experimental techniques.

Replaced with a version in print in Phys. Rev. B; Minor changes and references added; 12 pages, 7 figures

References in corpus (12)

• High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
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Cited by in corpus (16)

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• Vortices with magnetic field inversion in noncentrosymmetric superconductors
• Coreless vortices as direct signature of chiral $d$-wave superconductivity
• Skyrmionic chains and lattices in $s+id$ superconductors
• Chiral p-wave superconductors have complex coherence and magnetic field penetration lengths
• Robust and tunable coreless vortices and fractional vortices in chiral $d$-wave superconductors
• Symmetries, Length Scales, Magnetic Response and Skyrmion Chains in Nematic Superconductors
• Probing chiral superconductivity in Sr${}_2$RuO${}_4$ underneath the surface by point contact measurements
• Derivation of a Ginzburg-Landau free energy density containing mixed gradient terms of a $p+ip$ superconductor with spin-orbit coupling
• Change of the vortex core structure in two-band superconductors at impurity-scattering-driven $s_{\pm }/s_{++}$ crossover
• First order superconducting phase transition in chiral $p+ip$ system
• Observation of vortex stripes in UTe${}_2$
• Field-induced coexistence of $s_{++}$ and $s_{\pm }$ superconducting states in dirty multiband superconductors
• Thermal fluctuations and vortex lattice structures in chiral $p$-wave superconductors: robustness of double-quanta vortices
• Unconventional magnetization in the multiphase superconductor PdBi${}_2$