Recent advances of NMR and NQR studies of YBa2Cu3O7-d and YBa2Cu4O8

Abstract

Some of recent advances in the NMR and NQR studies of high-Tc superconductors YBa2Cu3O7-d and YBa2Cu4O8 are presented. The topics concerned are the understanding of magnetic phase diagram, impurity substitution effects and vortex core states in the mixed states.

arXiv comment20 pages, 24 figures