FLUX MOTION IN DYBA2CU3O7 (Y1-XPRX)BA2CU3O7 HETEROSTRUCTURES/

Authors
TRISCONE JM FIVAT P BRUNNER O PEREZPINAYA R DECROUX M FISCHER O
Citation
Jm. Triscone et al., FLUX MOTION IN DYBA2CU3O7 (Y1-XPRX)BA2CU3O7 HETEROSTRUCTURES/, Physica. B, Condensed matter, 194, 1994, pp. 2375-2376
Citations number
4
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
2
Pages
2375 - 2376
Database
ISI
SICI code
0921-4526(1994)194:<2375:FMID(H>2.0.ZU;2-8
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 DyBa2Cu 3O7 (24angstrom thick, N between 1 and 10) separated by 96 angstrom of (Y0.6Pr0.4)Ba2Cu3O7. For H applied parallel to the c-axis, the activa tion energy for flux motion U, extracted from the lnrho versus 1/T cur ves, increases linearly with N for N<3 and then progressively saturate s, demonstrating the coupling of the superconducting layers through th e alloy.