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Homogeneity assessment of YBa_2Cu_3O_(7-x) single crystals by cathodoluminescence microscopy



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Díaz-Guerra Viejo, Carlos and Piqueras de Noriega, Javier (1996) Homogeneity assessment of YBa_2Cu_3O_(7-x) single crystals by cathodoluminescence microscopy. Journal of Applied Physics, 80 (2). pp. 998-1001. ISSN 0021-8979


Official URL: http://dx.doi.org/10.1063/1.362913



Cathodoluminescence (CL) of YBa_2Cu_3O_(7-x) single crystals has been investigated in the scanning electron microscope, Some regions of the crystals, generally related to steps or other growth features, show enhanced CL Intensity. Spectra show the presence of two emission bands centered at about 2.85 and 2.3-2.4 eV, respectively. In the regions of higher 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.

Item Type:Article
Additional Information:

© 1996 American Institute of Physics.
This work was supported by DGICYT (Projects No. PB93-1256 and MAT 95-1184E). C.D.G. acknowledges MEC for a FPI research grant.

Uncontrolled Keywords:High-Tc Superconductors, Luminescence
Subjects:Sciences > Physics > Materials
ID Code:26750
Deposited On:30 Sep 2014 17:32
Last Modified:30 Sep 2014 17:32

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