EVIDENCE FOR COLLECTIVELY PHASE-LOCKED SHAPIRO STEPS IN STACKED NB AL-ALOX/NB JOSEPHSON-JUNCTIONS/

Authors
SONG SN THOMAS C RIPPERT ED MAGLIC S SONG YC LIN SW LIN CT ULMER M KETTERSON JB
Citation
Sn. Song et al., EVIDENCE FOR COLLECTIVELY PHASE-LOCKED SHAPIRO STEPS IN STACKED NB AL-ALOX/NB JOSEPHSON-JUNCTIONS/, Physics letters. A, 211(3), 1996, pp. 172-176
Citations number
17
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
211
Issue
3
Year of publication
1996
Pages
172 - 176
Database
ISI
SICI code
0375-9601(1996)211:3<172:EFCPSS>2.0.ZU;2-5
Abstract
When subjected to microwave radiation, the I-V characteristics of stac ked Josephson junctions should exhibit interesting new features which are absent in a single junction. Evidence for collectively phase-locke d Shapiro steps and coherent phase-locking of fluxon motion to the ext ernal microwave field has been found in observations on stacked Nb/Al- AlOx/Nb Josephson junctions.