Chandoul A, Charnaya E V, Kuleshov A A, Mikushev V M, Ulyashev A M
Institute of Physics, St. Petersburg State University, St. Petersburg, 198904, Russia.
J Magn Reson. 1998 Nov;135(1):113-7. doi: 10.1006/jmre.1998.1550.
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.
在γ辐照红宝石晶体中27Al核的特定情况下，证明了在稳态磁饱和条件下直接分离并测量杂质和晶格对核自旋 - 晶格弛豫贡献的可能性。分离了三价和电荷交换铬离子对杂质核弛豫的贡献。确定了电荷交换铬离子的数量。估计了Cr4+中心的自旋弛豫时间。
