Instability of a triangular Abrikosov lattice at values of the Ginzburg–Landau parameter κ close to unity

Journal Article · Fri Jul 15 00:00:00 EDT 2016 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776116050083· OSTI ID:22617225

Sigal, I. M. ^[1]

---

1. University of Toronto, Department of Mathematics (Canada)

The “soft” transverse mode of gapless excitations related to the deformation of a triangular Abrikosov lattice with a single flux quantum per unit cell at an arbitrary value of the Ginzburg–Landau parameter κ is investigated. An Abrikosov lattice with the angle φ = π/3 between the unit cell vectors is shown to be unstable in a narrow range of values, 1 < κ < 1.000634. The excitation spectrum of the mode under consideration at low values of the momentum k (in the k{sup 2} approximation) is isotropic at k lying in a plane perpendicular to the magnetic field.

• OSTI ID: 22617225
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 123, Issue 1; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABRIKOSOV THEORY
APPROXIMATIONS
DEFORMATION
EXCITATION
GINZBURG-LANDAU THEORY
INSTABILITY
MAGNETIC FIELDS
SPECTRA