Site-dependent local spin susceptibility is investigated with 125Te
nuclear magnetic resonance in a Weyl semimetal WTe2. The nuclear
spin-lattice relaxation rate 1/T1T shows a dependence of the square of
temperature T at high temperatures, followed by a constant behavior below 50
K. The temperature dependence features Weyl fermions appearing around the
linearly crossing bands. The Knight shift K scales to the square root of
1/T1T, corroborating a predominant spin contribution in low-lying
excitation. The observed dependence of K and 1/T1T on the four Te sites
shows the site-dependent electron correlation and density of states. The
angular profile of the NMR spectrum gives the anisotropic hyperfine coupling
tensor, consistent with 5p hole occupations on Te sites.Comment: 6 pages, 5 figure