Electromagnetic radiation from vortex flow in type-II superconductors

Details Electromagnetic radiation from vortex flow in type-II superconductors Electromagnetic radiation from vortex flow in type-II superconductors

2006-11-07

arxiv.org/abs/cond-mat/0611193v1

Physical Review Letters 97, 197002 (2006)

Physics

Condensed Matter

Superconductivity

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.97.197002

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, $\Delta/\hbar$. 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.

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