Observation of coherent modes of Josephson vortices in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x}

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.119909· OSTI ID:542119

Lee, J U; Guptasarma, P; Hornbaker, D; El-Kortas, A; Hinks, D; Gray, K E ^[1]

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1. Science and Technology Center for Superconductivity and Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We report strong evidence for coherent modes of moving Josephson vortices in mesas patterned on the surface of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} single crystals. The vortex flow current{endash}voltage curves are characterized by a sharp up-turn and the appearance of multiple branches as the current is ramped up and down at a fixed magnetic field and temperature. These results are consistent with weakly damped motion of Josephson vortices in which different coherent modes can occur in a close stack of Josephson coupled multilayers. {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 542119
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 10 Vol. 71; ISSN 0003-6951; ISSN APPLAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
JOSEPHSON EFFECT
MAGNETIC FLUX
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
VORTICES