TY - JOUR
T1 - Formation and behaviour of macrovortices during a turbulent relaxation process in high-Tc superconductors
AU - Koblischka, M. R.
AU - Johansen, T. H.
PY - 2005/5/4
Y1 - 2005/5/4
N2 - The time dependence of flux patterns obtained on an untwinned YBa 2Cu3O7-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 invading antiflux, macrovortices or droplets of flux are formed, and eventually separate from the flux front in a spiral-like motion. The time-dependent behaviour of these macrovortices is investigated in detail.
AB - The time dependence of flux patterns obtained on an untwinned YBa 2Cu3O7-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 invading antiflux, macrovortices or droplets of flux are formed, and eventually separate from the flux front in a spiral-like motion. The time-dependent behaviour of these macrovortices is investigated in detail.
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U2 - 10.1088/0953-8984/17/17/021
DO - 10.1088/0953-8984/17/17/021
M3 - Article
AN - SCOPUS:24344506171
SN - 0953-8984
VL - 17
SP - 2723
EP - 2732
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 17
ER -