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Flux motion in DyBa2Cu3O7/(Y1−xPrx)Ba2Cu3O7 hetero-structures

Published inPhysica B: Condensed Matter, vol. 194-196, p. 2375-2376
Publication date1994
Abstract

We investigate the thermally activated flux motion in structures made of DyBa₂Cu₃O₇ layers separated by an alloy of (Y₁₋ₓPrₓ)Ba₂Cu₃O₇. With x=0.4 we have grown a series of samples containing N layers of DyBa₂Cu₃O₇ (24Å thick, N between 1 and 10) separated by 96Å of (Y0.6Pr0.4)Ba₂Cu₃O₇. For H applied parallel to the c-axis, the activation energy for flux motion U, extracted from the lnϱ versus 1/T curves, increases linearly with N for N<3 and then progressively saturates, demonstrating the coupling of the superconducting layers through the alloy.

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Citation (ISO format)
TRISCONE, Jean-Marc et al. Flux motion in DyBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub>/(Y<sub>1−x</sub>Pr<sub>x</sub>)Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> hetero-structures. In: Physica B: Condensed Matter, 1994, vol. 194-196, p. 2375–2376. doi: 10.1016/0921-4526(94)91687-X
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ISSN of the journal0921-4526
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