Teplov M.; Bakharev O.; Dooglav A.; Egorov A.; Mukhamedshin I.; De Gronckel H.; Alloul H.; Mendels P.; Eremina R.
(1999)
The copper NQR and ZFNMR and thulium NMR are studied in a series of 123 superconductors. It is found that in the aged 60-K superconductors RBa2Cu3O6+x the well known conducting (nonmagnetic) phase co-exists with the ...