HOMOGENEITY ASSESSMENT OF YBA2CU3O7-X SINGLE-CRYSTALS BY CATHODOLUMINESCENCE MICROSCOPY

Authors
DIAZGUERRA C PIQUERAS J
Citation
C. Diazguerra et J. Piqueras, HOMOGENEITY ASSESSMENT OF YBA2CU3O7-X SINGLE-CRYSTALS BY CATHODOLUMINESCENCE MICROSCOPY, Journal of applied physics, 80(2), 1996, pp. 998-1001
Citations number
18
Categorie Soggetti
Physics, Applied
Journal title
Journal of applied physics → ACNP
ISSN journal
00218979
Volume
80
Issue
2
Year of publication
1996
Pages
998 - 1001
Database
ISI
SICI code
0021-8979(1996)80:2<998:HAOYSB>2.0.ZU;2-8
Abstract
Cathodoluminescence (CL) of YBa2Cu3O7-x single crystals has been inves tigated in the scanning electron microscope, Some regions of the cryst als, generally related to steps or other growth features, show enhance d CL Intensity. Spectra show the presence of two emission bands center ed at about 2.85 and 2.3-2.4 eV, respectively. In the regions of highe r CL intensity, the 2.3 eV band, which has been attributed to defects in the oxygen sublattice, shows a higher relative intensity. (C) 1996 Americans Institute of Physics.