Nuclear magnetic resonance of copper in the superconductor Pr1.85Ce0.15CuO4-y
Bakharev O. N. , Egorov A. V. , Eremin M. V., Zhdanov R. Sh., Tagirov M. S. , Teplov M. A.
The nuclear magnetic resonance of 63Cu and 65Cu was observed in an "electronic superconductor" Pr185 Ce015Cu04 _y at the frequencies of 8.1 and 10.7MHzand at temperatures of 1.5 К and 4.2 K. The spin-echo method was used to observe this effect. It follows from the experiment that the relaxation of the longitudinal magnetization of 63 65Cu is determined by a quadrupole mechanism.