Abstract
The time dependence of flux patterns of an untwinned YBa2Cu3O7-δ single crystal showing the "meandering instability" is observed at T = 65 K using magneto-optical imaging. When applying a reversed external field to a remanent state, along the front of penetrating antivortices, flux droplets are formed which can separate from the flux front and move in a spiral-like fashion. It is shown that the vortices along the flux front are in fast motion. These observations are discussed using a newly developed theory. Furthermore, the flux patterns are analyzed in terms of flux creep.
Original language | English |
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Pages (from-to) | 419-424 |
Number of pages | 6 |
Journal | Europhysics Letters |
Volume | 41 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1998 Feb 15 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)