Dobrovolskiy O. Nonlinear vortex dynamics in superconducting niobium films with anisotropic pinning nanostructures

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0516U000459

Thesis Registration Form

0516U000459.pdf

Applicant for

Specialization

  • 01.04.22 - Надпровідність

31-05-2016

Specialized Academic Board

Д64.175.03

Essay

The thesis is devoted to an experimental and theoretical investigation of the nonlinear dynamics of Abrikosov vortices in superconducting niobium films with anisotropic pinning nanostructures of the washboard type. Vortex guiding and matching fields in the vortex dynamics have been revealed. The ratchet effect and its reversal are elucidated for films with a symmetric and an asymmetric pinning potential, respectively. Possible applications of the predicted effects, namely in high-frequency filters, frequency converters, pulse generators, modulators and stochastic amplifiers are analyzed.

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Files

aref.doc

diss.pdf

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