Expression for Temperature dependence of Switiching current and Retrapping current for superconducting nanowires?

10 May 2019 1 7K Report

Article Dynamics of superconducting nanowires shunted with an extern...

https://www.nature.com/articles/srep44569

In these article the temperature dependence is fitted using Kulik- Omel’yanchuk formula or Typical Bardeen expression for critical current.

What is the expression of Kulik- Omel’yanchuk?

and

What is the right approach to explain the temperature dependence of Switching Current or Retrapping current for superconducting nanowire where phase slip is a possibility.

What is the right approach to explain the temperature dependence of Switching Current or Retrapping current for superconducting nanowire?

How can we relate this dependence with phase slip events?

Vibha Negi

Hello Dr. Behnam Farid ,

Thank you for the response.

The Kulik approach shows critical current dependence on phase. So how these authors are plotting and fitting it against temperatures.

I am unable to find expression for Ic and T depednece.

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