Electromagnetic radiation from vortex flow in type-II superconductors

Abstract

We show that a moving vortex lattice, as it comes to a crystal edge, radiates into a free space the harmonics of the washboard frequency, ${\omega }_0=2\pi v/a$, up to a superconducting gap, $\Delta /\hslash$. Here $v$ is the velocity of the vortex lattice and $a$ is the intervortex spacing. We compute radiation power and show that this effect can be used for generation of terahertz radiation and for characterization of moving vortex lattices.

4 pages, 1 figure

References in corpus (4)

• Moving glass theory of driven lattices with disorder
• Direct evidence for an intrinsic square vortex lattice in the overdoped high-Tc superconductor La1.83Sr0.17CuO4+d
• Observation of a Triangular to Square Flux Lattice Phase Transition in YBCO
• Direct observation of the washboard noise of a driven vortex lattice in a high-temperature superconductor, Bi2Sr2CaCu2Oy

Cited by in corpus (7)

• Ultra-fast vortex motion in dirty Nb-C superconductor with a close-to-perfect edge barrier
• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Microwave emission from superconducting vortices in Mo/Si superlattices
• Radiofrequency generation by coherently moving fluxons
• Electrodynamics of Abrikosov vortices: the Field Theoretical Formulation
• Fast Dynamics of Vortices in Superconductors
• The effect of Joule heating on the terahertz radiation in the superconductor media