Inelastic tunneling of Cooper pairs in c-direction in BSCCO single Josephson junctions and stacks
Journal Article
·
· Journal of Low Temperature Physics
- and others
A reproducible fine structure at subgap voltages in the I(U)-characteristics of BSCCO single Josephson junctions and stacks has been observed and investigated. The structure is detectable only in the presence of an AC Josephson current. The overall form of the fine structure is in good agreement with the Raman scattering spectra of the optical phonon modes in this material. The authors attribute this structure to an inelastic (phonon assisted) tunneling of Cooper pairs, which is accompanied by the emission of coherent Raman-active optical phonons at resonance voltages U{sub res} = {h{underscore}bar}{omega}{sub phon}/2e. The observed structure can be explained in terms of a theoretical model developed by Maksimov, Arseyev and Maslova.
- Research Organization:
- Univ. Wuppertal (DE)
- OSTI ID:
- 20012843
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 117; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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