C. Diazguerra et J. Piqueras, REMOTE ELECTRON-BEAM-INDUCED CURRENT IMAGING OF ELECTRICALLY ACTIVE REGIONS IN YBA2CU3O7-X SINGLE-CRYSTALS, Applied physics letters, 71(19), 1997, pp. 2830-2832
Remote electron beam induced current (REBIC) measurements have been ca
rried out to investigate electrically active regions in YBa2Cu3O7-x si
ngle crystals. Enhanced REBIC contrast, found in growth steps and othe
r topographic features of the samples, is discussed in terms of charge
d oxygen-related defects. The capability of REBIC to image structural
inhomogeneities caused by strain or plastic deformation in these cryst
als is also established. Charge carrier diffusion length has been esti
mated at different temperatures from REBIC linescan profiles. (C) 1997
American Institute of Physics. [S0003-6951(97)03345-7].