Publication
Title
Atomic structure and defect structure of the superconducting $HgBa_{2}Ca_{n-1}Cu_{n}O_{2n+2+\delta}$ homologous series
Author
Abstract
 The perfect as well as the defect structure of several members of the superconducting family HgBa2Can-1CunO2n+2+delta have been studied in detail by electron diffraction and high-resolution electron microscopy Identification of the cation configuration is possible, even in the defect regions, with the help of computer simulations. The fine structure of several defects is analyzed in detail, the most common defect being the intergrowth of slabs corresponding to different n values in the title formula. In general, however, the crystals are of a high perfection, particularly for the lower n members. The occurrence of double (HgO)delta layers is seen occasionally, indicating the possible existence of a material with a double mercury layer. Some of these defects are possibly related to recently discovered anomalies at 250 K in these compounds.
Language
English
Source (journal)
Physica: C: superconductivity. - Amsterdam
Publication
Amsterdam : 1994
ISSN
0921-4534
Volume/pages
223:3/4(1994), p. 219-226
ISI
A1994NG47600003
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address