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$\beta$-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 TypeJournal Article
Year of Publication2014
AuthorsSalman, Z, Chow, KH, Hossain, MD, Kiefl, RF, Levy, CDP, Parolin, TJ, Pearson, MR, Saadaoui, H, Wang, D, MacFarlane, WA
JournalJ. Phys.: Conf. Ser.
Volume551
Pagination012034
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.

URLhttp://stacks.iop.org/1742-6596/551/i=1/a=012034