Vortices with magnetic field inversion in noncentrosymmetric superconductors
| Autor: | Dmitri E. Kharzeev, M. N. Chernodub, Julien Garaud |
|---|---|
| Přispěvatelé: | Institut Denis Poisson (IDP), Centre National de la Recherche Scientifique (CNRS)-Université de Tours (UT)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Université de Tours-Université d'Orléans (UO) |
| Rok vydání: | 2020 |
| Předmět: |
High Energy Physics - Theory
Josephson effect Point reflection Magnetoelectric effect FOS: Physical sciences magnetic field 02 engineering and technology 01 natural sciences Superconductivity (cond-mat.supr-con) Superfluidity and superconductivity Condensed Matter::Superconductivity 0103 physical sciences Bound state Molecular symmetry numerical calculations cluster 010306 general physics Landau-Ginzburg model lattice Superconductivity Physics Condensed matter physics [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] superconductivity Condensed Matter - Superconductivity vortex: bound state bound state: formation 021001 nanoscience & nanotechnology [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] Magnetic field Vortex High Energy Physics - Theory (hep-th) 0210 nano-technology |
| Zdroj: | Phys.Rev.B Phys.Rev.B, 2020, 102 (18), pp.184516. ⟨10.1103/PhysRevB.102.184516⟩ |
| DOI: | 10.48550/arxiv.2003.10917 |
| Popis: | Superconducting materials with noncentrosymmetric lattices lacking space inversion symmetry exhibit a variety of interesting parity-breaking phenomena, including the magneto-electric effect, spin-polarized currents, helical states, and the unusual Josephson effect. We demonstrate, within a Ginzburg-Landau framework describing noncentrosymmetric superconductors with $O$ point group symmetry, that vortices can exhibit an inversion of the magnetic field at a certain distance from the vortex core. In stark contrast to conventional superconducting vortices, the magnetic-field reversal in the parity-broken superconductor leads to non-monotonic intervortex forces, and, as a consequence, to the exotic properties of the vortex matter such as the formation of vortex bound states, vortex clusters, and the appearance of metastable vortex/anti-vortex bound states. Comment: Added analytic expressions of the physical quantities in the London limit; Replaced with a version in print in Phys. Rev. B; 12 pages, 4 figures |
| Databáze: | OpenAIRE |
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