Abstract

Motion of a single vortex line in steady state under action of an external force due to alternate transport current, viscosity and pinning forces as well as the Magnus force has been investigated. The presence of the effective vortex mass was also taken into account. The vibrational spectrum of the line had two branches: the low- and high-frequency ones. The latter branch appears due to taking the effective vortex mass into consideration. In present report, the absorption of energy by the vortex, depending on the frequency of external transport current, has been calculated. The frequency dependence of the absorption demonstrates two typical resonance maxima, one of them being due to depinning frequency of the vortex, and the other one due to its cyclotron resonance. The influences of other forces on dynamics of the single vortex line were considered.

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