Franz, A. and Koval, Y. and Vasyukov, D. and Mueller, P. and Schneidewind, H. and Ryndyk, D. A. and Keller, J. and Helm, C (2004) Thermal fluctuations in ultrasmall intrinsic Josephson junctions. PHYSICAL REVIEW B, 69 (1): 014506. ISSN 1098-0121, 1550-235X
Full text not available from this repository.Abstract
Current-voltage curves of small area hysteretic intrinsic Josephson junctions, for which the Josephson energy E-J=hJ(c)/2e is of the order of thermal energy kT, are investigated. A nonmonotonic temperature dependence of the switching current is observed and explained by thermal phase fluctuations. At low temperatures premature switching from the superconducting into the resistive state is the most important effect of fluctuations. At high temperatures only a single resistive branch is observed. At the cross over temperature a hysteretic phase-diffusion branch exists. It shows the importance of a frequency-dependent impedance of an external circuit formed by the leads.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AXIS PLASMA RESONANCE; VORTEX LIQUID-PHASE; LAYERED SUPERCONDUCTORS; COUPLED SUPERCONDUCTORS; SINGLE-CRYSTALS; STATE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Joachim Keller |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Jul 2021 08:26 |
| Last Modified: | 27 Jul 2021 08:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38249 |
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