NMR study of copper with vanadium impurities

We present NMR data on copper with dilute vanadium impurities. We have measured the Knight shift of the ${}_{}{}^{51}{}_{}{}^{}\mathrm{V}$ impurity resonance and analyzed it in terms of a nonmagnetic virtual bound state. We have detected several host satellite resonances. One has a very large quadrupole coupling constant ${\nu }_Q\sim 3.5$ MHz and asymmetry parameter $\eta \sim 0.3$; we identify it as the first-neighbor resonance. A magnetic satellite with shift $\frac{\Delta K}{K}=-0.658\mathrm{}\pm 0.015$ is thought to be the resonance of the second or fourth neighbors. A satellite with weak magnetic coupling $\frac{\Delta K}{K}=+0.2\mathrm{}\pm 0.1$ is probably due to third neighbors. Our studies conclude that vanadium impurities in copper are magnetically similar to cobalt impurities.