Nuclear-resonance study ofRb87in RbMnF3

Abstract
The Rb87 nuclear spin-lattice relaxation time in the antiferromagnet RbMnF3 has been measured from 1.5 to 300 K. The results, extrapolated to infinite temperature, agree within experimental error with theory using newly evaluated spin-pair correlation functions. The temperature dependence is compared with Moriya's theory in the paramagnetic region.