Spin-lattice relaxation of a nuclear antiferromagnet
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چکیده
2014 We consider the influence of antiferromagnetic nuclear ordering on the spin-lattice relaxation of the nuclear dipolar energy by paramagnetic impurities. The predictions are different depending whether the correlation time 03C4c of the spin-lattice coupling is shorter or longer than T2. When 03C4c ~ T2, relaxation is slower in the antiferromagnetic than in the paramagnetic state. When 03C4c ~ T2, the relaxation rate is maximum at the transition. The experimental results in calcium fluoride crystals agree with the theoretical predictions for the case 03C4c ~ T2. LE JOI RNAL DE PHYSIQUE TOME 37, MAI 1976, Classification Physics Abstracts 8.544 8.664
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تاریخ انتشار 2016