Structural features of (Ba2Cu2O4+x)/(CaCuO2)(n) superconducting oxide superlattices with ultrathin individual layers

Authors
Balestrino, G Pasquini, G Tebano, A
Citation
G. Balestrino et al., Structural features of (Ba2Cu2O4+x)/(CaCuO2)(n) superconducting oxide superlattices with ultrathin individual layers, PHYS REV B, 62(2), 2000, pp. 1421-1426
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
2
Year of publication
2000
Pages
1421 - 1426
Database
ISI
SICI code
0163-1829(20000701)62:2<1421:SFO(SO>2.0.ZU;2-6
Abstract
The structural disorder in (Ba2Cu2O4+x)/(CaCuO2)(n) superlattices with ultr athin individual layers consisting of a noninteger number of unit cells is investigated. X-ray diffration and reflection high energy electron diffract ion show that a two-dimensional layer by layer growth occurs and that layer s of mixed composition are corrugated to adjust the internal stresses. On t he basis of these conclusions we can outline an explanation for the behavio r of T-c vs n in (Ba2Cu2O4+x)/(CaCuO2)(n) superlattices.