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Nuclear Magnetic Relaxation of the $^{51}$V Nucleus in a YVO$_4$:Nd Single Crystal
New Phys.: Sae Mulli 2019; 69: 142~148
Published online February 28, 2019;
© 2019 New Physics: Sae Mulli.

Tae Ho YEOM*1, Sung Soo PARK2

1 Department of Laser and Optical Information Engineering, Cheongju University, Cheongju 28503, Korea

2 Department of Science Education and Nuclear Magnetic Resonance Research Center, Jeonju University, Jeonju 55069, Korea

Correspondence to:
Received December 10, 2018; Revised December 31, 2018; Accepted January 2, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Nuclear magnetic resonance data of the $^{51}$V nucleus in an YVO$_4$ single crystal doped with Nd are obtained using a Fourier-transform nuclear magnetic resonance (NMR) spectrometer in the temperature range of 180 K $\sim$ 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 ($T^{-1}_1 \propto T^2$). 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.
PACS numbers: 76.60.-k
Keywords: Nuclear magnetic resonance, YVO$_4$:Nd single crystal, Relaxation mechanism, Nd paramagnetic impurity

April 2019, 69 (4)
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