Helm, Ch. and Preis, Ch. and Forsthofer, F. and Keller, Joachim and Schlenga, K. and Kleiner, R. and Müller, P. (1997) Coupling between phonons and intrinsic Josephson oscillations in cuprate superconductors. PHYSICAL REVIEW LETTERS, 79 (4). pp. 737-740. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
The recently reported subgap structures in the current-voltage characteristic of intrinsic Josephson junctions in the high-T-c superconductors Tl2Ba2Ca2Cu3O10+delta and Bi2Sr2CaCU2O8+delta are explained by the coupling between c-axis phonons and Josephson oscillations. A model is developed where c-axis lattice vibrations between adjacent superconducting multilayers are excited by the Josephson oscillations in a resistive junction. The voltages of the lowest structures correspond well to the frequencies of longitudinal c-axis phonons with large oscillator strength in the two materials, providing a new measurement technique for this quantity.
| Item Type: | Article |
|---|---|
| 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: | 25 Apr 2023 06:28 |
| Last Modified: | 25 Apr 2023 06:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/50692 |
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