Direct evidence for block-by-block growth in high-temperature superconductor ultrathin films

M. Varela, W. Grogger, D. Arias, Z. Sefrioui, C. León, C. Ballesteros, K. M. Krishnan, J. Santamaría

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

To resolve the long-standing but fundamental issue of growth modes, a consistent approach based on ex situ quantitative structural and chemical characterization of epitaxially grown ultrathin layers in YBCO/PBCO superlattices was developed. From the analysis of superlattices with a noninteger number of YBCO layers, concrete evidence was obtained for a two dimensional block-by-block growth mechanism in which the growth units are single YBCO unit cells and layer growth proceeds laterally, by the addition of one unit cell blocks.

Originalspracheenglisch
Seiten (von - bis)5156-5159
Seitenumfang4
FachzeitschriftPhysical Review Letters
Jahrgang86
Ausgabenummer22
DOIs
PublikationsstatusVeröffentlicht - 28 Mai 2001
Extern publiziertJa

ASJC Scopus subject areas

  • Physik und Astronomie (insg.)

Dieses zitieren