- PII
- 10.31857/S0044451023020050-1
- DOI
- 10.31857/S0044451023020050
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 163 / Issue number 2
- Pages
- 180-188
- Abstract
- The characteristics of point Josephson contacts Pb0.6In0.4/KFe2As2 and KFe2As2/KFe2As2 have been studied. The temperature dependences of characteristic contact voltages VC(T) and the dependences of the first current step amplitudes in I–V characteristics on the power of 7.6-GHz electromagnetic radiation have been measured. It has been found that VC(T) curves for all contacts can be described in terms of the SIS*IS contact model (S, I, and S* stand for superconductor, insulator, and superconductor with a lower critical temperature, respectively) for superconductors with the s-symmetry of order parameter. It has been proved that the current step oscillation period as a function of microwave power can be exactly approximated with the resistive model of contact with IS = ICsin(φ). Obtained data are consistent with the normal s-symmetry of order parameter.
- Keywords
- Date of publication
- 15.02.2023
- Year of publication
- 2023
- Number of purchasers
- 0
- Views
- 34
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