Intrinsic electromagnetic radiation of high-Tc superconducting thin-film bridge structures
Amatuni L. E. , Akhumyan A. A. , Airapetyan R. B. , Konstantinyan K. I. , Martirosyan R. M. , Ovsyannikov G. A.
A narrow-band radiation of electromagnetic waves at a power level as high as P=3xl0_11W and frequency of 21 GHz has been observed experimentally in high-7^ superconducting bridge structures. This radiation is caused by a transport-current-induced coherent motion of flux quanta (vortices) through a superconducting granular film.