Publication
Title
Direct observation of nanometer-scale pinning sites in single crystals
Author
Abstract
We report on the observation of self-organized stripe-like structures on the as-grown surface and in the bulk of (Nd,Eu,Gd)Ba2Cu3Oy single crystals. The periodicity of the stripes on the surface lies between 500800 nm. These are possibly the growth steps of the crystal. Transmission electron microscopy investigations revealed stripes of periodicity in the range of 2040 nm in the bulk. From electron back scattered diffraction investigations, no crystallographic misorientation due to the nanostripes has been found. Scanning tunneling spectroscopic experiments revealed nonsuperconducting regions, running along twin directions, which presumably constitute strong pinning sites.
Language
English
Source (journal)
Europhysics letters / Société européenne de physique. - Les Ulis, 1986, currens
Publication
Les Ulis : Les éditions de physique , 2008
ISSN
0295-5075
1286-4854
DOI
10.1209/0295-5075/83/37005
Volume/pages
83 :3 (2008) , p. 37005,1-37005,4
ISI
000259022600032
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 27.05.2009
Last edited 16.08.2024
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