# $\beta$-detected nuclear quadrupole resonance and relaxation of $^8$Li$^+$ in sapphire

 Title $\beta$-detected nuclear quadrupole resonance and relaxation of $^8$Li$^+$ in sapphire Publication Type Journal Article Year of Publication 2014 Authors Salman, Z, Chow, KH, Hossain, MD, Kiefl, RF, Levy, CDP, Parolin, TJ, Pearson, MR, Saadaoui, H, Wang, D, MacFarlane, WA Journal J. Phys.: Conf. Ser. Volume 551 Pagination 012034 Abstract We report detailed behaviour of low energy 8 Li implanted near the surface of α- Al 2 O 3 single crystal, as revealed by beta-detected NQR of 8 Li. We find that the implanted 8 Li occupies at least two sites with non-cubic symmetry in the Al 2 O 3 lattice. In both sites the 8 Li experiences axially symmetric electric field gradient, with the main principal axis along the c -crystallographic direction. The temperature and field dependence of the spin lattice relaxation of 8 Li in α-Al 2 O 3 , indicate that the 8 Li diffusion is negligible on the scale of its lifetime, 1.21 s. URL http://stacks.iop.org/1742-6596/551/i=1/a=012034