P. Berger et al., NUCLEAR MICROPROBE LOCAL CHARACTERIZATION OF YBACUO SUPERCONDUCTORS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 104(1-4), 1995, pp. 542-546
Stoichiometric local characterizations of YBaCuO oxides have been perf
ormed using a 1.4 MeV deuteron microbeam. A beam with a size of 10 x 1
5 mu m(2) allows the observation of variations of x = 0.2 in sintered
YBa2Cu3O7-x. Local variations of oxygen stoichiometry in a melt-textur
ed sample, correlated with the microstructure, have been observed. In
spite of the degradation of the sample under the beam, oxygen measurem
ents seem to remain significant for doses above 10(18) ions/cm(2).