Impurity nuclear spin-lattice relaxation suppression and charge exchange of chromium ions in a gamma-irradiated ruby crystal.
The possibility of directly separating and measuring the impurity and lattice contributions to nuclear spin-lattice relaxation under the condition of a steady-state magnetic saturation is demonstrated in the particular case of 27Al nuclei in a gamma-irradiated ruby crystal. Contributions from trivalent and charge-exchanged chromium ions to impurity nuclear relaxation were separated. The number of charge-exchanged chromium ions was found. The spin relaxation time of Cr4+ centers was estimated.
Chandoul
A
A
Institute of Physics, St. Petersburg State University, St. Petersburg, 198904, Russia.
Charnaya
E V
EV
Kuleshov
A A
AA
Mikushev
V M
VM
Ulyashev
A M
AM
D002857:Chromium / Q000737:chemistry* / Q000528:radiation effects*; D003460:Crystallization; D005720:Gamma Rays; D007474:Ion Exchange; D009682:Magnetic Resonance Spectroscopy
D002857:Chromium