Year: 2010
Type: article
Abstract: Thermodynamic stability of composite vortex in a two-component superconductor is investigated by the Ginzburg-Landau theory. The predicted nature of these vortices has recently attracted much attention. Here we consider axially symmetric quantized vortex and show that the stability of vortex depends on three independent dimensionless parameters: ${\ensuremath{\kappa}}_{1}$, ${\ensuremath{\kappa}}_{2}$, and ${\ensuremath{\kappa}}_{\ensuremath{\xi}}$, where ${\ensuremath{\kappa}}_{i}\text{ }(i=1,2)$ is the Ginzburg-Landau parameter of individual component, ${\ensuremath{\kappa}}_{\ensuremath{\xi}}={\ensuremath{\xi}}_{1}/{\ensuremath{\xi}}_{2}$ is the ratio of two coherence lengths. We also show that there exists thermodynamically stable vortex in a two-component superconductor over a range of these three parameters.
Source: Physical Review B
Author: Jun-Ping Wang
Institution: Yantai University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2066324019