Fs. Nasredinov et al., Experimental observation of localization-delocalization of cooper pairs inNd1.85Ce0.15CuO4, JETP LETTER, 70(9), 1999, pp. 641-644
Localization-delocalization of cooper pairs on Zn-67 impurity centers in th
e copper sublattice in the high-temperature superconductor Nd1.85Ce0.15CuO4
was observed by emission Mossbauer spectroscopy on Cu-67 (Zn-67). (C) 1999
American Institute of Physics. [S0021-3640(99)01421-8].