Spin-Lattice Relaxation Times in Ruby at 34 6 Gc/s

摘要: Measurements of spin-lattice relaxation time in ruby have been made at 34 6 Gc/s by a pulse saturation method temperatures from 1.4° to 90°K With weak concentrations the values for first-order transitions (e.g. 22 msec 4.2°K) are same order magnitude as those reported lower frequencies, and variation with temperature is fair agreement theory. A successive increase transition, pronounced 1.4°K, decreases increasing temperature, about 77°K common value 44 μsec obtained all transitions. The main effects concentration reduce alter its dependence.