Thermally activated vortex motion in YBa2Cu3O7 wire networks

With a mutual inductance method we have measured the temperature dependence of the complex AC impedance Z = R + iωL of high quality YBa2Cu3O7 wire networks. In a perpendicular magnetic field the real and the imaginary part of Z exhibit oscillations resulting from flux quantization in the loops of the network. The relative amplitude of the oscillations of the inverse effective sheet inductance 1/L is consistent with a model where 1/L is renormalized by thermally activated vortex motion.


Published in:
Physica B: Condensed Matter , 204, 1-4, 195-199
Year:
1995
Laboratories:


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 Record created 2005-10-18, last modified 2018-03-17

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