RT Journal Article
T1 Intracell changes in epitaxially strained YBa_(2)Cu_(3)O_(7-x) ultrathin layers in YBa_(2)Cu_(3)O_(7-x)/PrBa_(2)Cu_(3)O_(7) superlattices
A1 Varela Del Arco, María
A1 Sefrioui, Zouhair
A1 Arias Serna, Diego
A1 Navacerrada, M. A.
A1 Lucía Mulas, María Luisa
A1 López de la Torre, M. A.
A1 León Yebra, Carlos
A1 Loos, G. D.
A1 Sánchez Quesada, Francisco
A1 Santamaría Sánchez-Barriga, Jacobo
AB The structure of high quality [YBCO_(N)/PBCO_(M)]_(1000 Å) superlattices, with N ranging between 1 and 12 unit cells and M = 5 unit cells, grown by high oxygen pressure sputtering, is analyzed. Intracell atomic structure of the layers along the c axis and disorder at interfaces is investigated using an x-ray refinement technique. Negligible roughness, step disorder, and interdiffusion are found at the interfaces. Epitaxial mismatch strain results in a surprising reorganization of interatomic distances for the thinnest YBCO layers, which seems to correlated with the decrease in the critical temperature. Intracell structure is invoked as an additional source of T_(c) changes in very thin YBCO layers.
PB American Physical Society
SN 0031-9007
YR 1999
FD 1999-11-08
LK https://hdl.handle.net/20.500.14352/59654
UL https://hdl.handle.net/20.500.14352/59654
LA eng
NO © 1999 The American Physical Society. J. S. and his group thank I. K. Schuller for instruction in physics and other things in the last ten years. G. Loos thanks the sabbaticals SA 106/95 SAB1995–0685 to Universidad Complutense and Ministerio de Educación y Cultura. Financial support from CICYT Grant No. MAT94-0604 is also acknowledged.
NO Universidad Complutense
NO Ministerio de Educación y Cultura
NO CICYT
DS Docta Complutense
RD 9 abr 2025