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Journal Article

Instabilities of the normal state in current-biased narrow superconducting strips

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Ovchinnikov,  Yury N.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Ovchinnikov, Y. N., Varlamov, A. A., Kimmel, G. J., & Glatz, A. (2020). Instabilities of the normal state in current-biased narrow superconducting strips. Physical Review B, 101(1): 014511. doi:10.1103/PhysRevB.101.014511.


Cite as: https://hdl.handle.net/21.11116/0000-0005-C6F3-9
Abstract
We study the current-voltage characteristic of narrow superconducting strips in the gapless regime near the critical temperature in the framework of the Ginzburg-Landau model. Our focus is on its instabilities occurring at high current biases. The latter are consequences of dynamical states with periodic phase-slip events in space and time. We analyze their structure and derive the value of the reentrance current at the onset of the instability of the normal state. It is expressed in terms of the kinetic coefficient of the time-dependent Ginzburg-Landau equation and calculated numerically.