Nuclear Magnetic Relaxation of the $^{51}$V Nucleus in a YVO$_4$:Nd Single Crystal

Abstract

Nuclear magnetic resonance data of the 51 V nucleus in an YVO4 single crystal doped with Nd are obtained using a Fourier-transform nuclear magnetic resonance (NMR) spectrometer in the temperature range of 180 K ∼ 410 K. The spin-lattice relaxation mechanisms are investigated, and the dominant mechanism at temperatures above 280 K is found to be the Raman process because the spin lattice relaxation rate of the 51 V nucleus is proportional to the square of the temperature (T −1 1 ∝ T 2). However, at temperature below 280 K, the effect of the paramagnetic impurity becomes more significant than that of the quadrupole relaxation. This is verified through an analysis of the activation energy of the paramagnetic Nd 3+ impurity.