The Site and High Field βNMR Properties of 8Li+ Implanted in α-Al2O3

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dc.contributor.authorMacFarlane, WAen_AU
dc.contributor.authorShenton, JKen_AU
dc.contributor.authorSalman, Zen_AU
dc.contributor.authorChatzichristos, Aen_AU
dc.contributor.authorCortie, DLen_AU
dc.contributor.authorDehn, Men_AU
dc.contributor.authorFujimoto, Den_AU
dc.contributor.authorKarner, VLen_AU
dc.contributor.authorKiefl, RFen_AU
dc.contributor.authorKoumoulis, Den_AU
dc.contributor.authorLevy, CDPen_AU
dc.contributor.authorMcFadden, RMLen_AU
dc.contributor.authorMcKenzie, Ien_AU
dc.contributor.authorMorris, GDen_AU
dc.contributor.authorPearson, MRen_AU
dc.contributor.authorStachura, Men_AU
dc.contributor.authorTicknor, JOen_AU
dc.date.accessioned2024-06-17T06:35:42Zen_AU
dc.date.available2024-06-17T06:35:42Zen_AU
dc.date.issued2023-03-01en_AU
dc.date.statistics2024-05-16en_AU
dc.description.abstractWe present high (> 2 T) magnetic field βNMR measurements of 8Li+ implanted in single crystals of sapphire, a commonly used backing material for other samples. From the well-resolved quadrupolar splitting, we extract the electric field gradient (EFG) at the implanted 8Li+ site. Comparison with supercell density functional theory calculations of the EFG allows us to identify the octahedral interstitial site as the most likely candidate. In contrast to the zero field βNQR spectra, where multiple singals are detected, only a single site is evident at high field. We discuss possible explanations for this discrepancy. The spin lattice relaxation is extremely slow (1/T1 < 0.02 s−1 ) over a broad temperature range from 4 to 300 K, demonstrating that cross relaxation with the 27Al nuclear spins is quenched in such high magnetic fields.en_AU
dc.identifier.citationMacFarlane, W. A., Shenton, J. K., Salman, Z., Chatzichristos, A., Cortie, D. L., Dehn, M., Fujimoto, D., Karner, V. L., Kiefl, R. F., Koumoulis, D., Levy, C. D. P., McFadden, R. M. L., McKenzie, I., Morris, G. D., Pearson, M. R., Stachura, M., & Ticknor, J. O. (2022). The Site and High Field βNMR Properties of 8Li+ Implanted in α-Al2O3. Paper presented to The 15th International Conference on Muon Spin Rotation, Relaxation and Resonance 28/08 - 02/09/2022 Parma, Italy. In Journal of Physics: Conference Series 2023, V. 2462 (1), (pp. 012009_1 - 012009_11). DOI: 10.1088/1742-6596/2462/1/012009en_AU
dc.identifier.conferenceenddate2022-09-02en_AU
dc.identifier.conferencenameThe 15th International Conference on Muon Spin Rotation, Relaxation and Resonanceen_AU
dc.identifier.conferenceplaceParma, Italyen_AU
dc.identifier.conferencestartdate2022-08-28en_AU
dc.identifier.issn1742-6588en_AU
dc.identifier.issn1742-6596en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Physics Conference Seriesen_AU
dc.identifier.pagination012009_1 - 012009_11en_AU
dc.identifier.urihttp://dx.doi.org/10.1088/1742-6596/2462/1/012009en_AU
dc.identifier.urihttps://doi.org/10.1088/1742-6596/2462/1/012009en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15646en_AU
dc.identifier.volume2462en_AU
dc.publisherIOP Publishingen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectMonocrystalsen_AU
dc.subjectSapphireen_AU
dc.subjectMaterialsen_AU
dc.subjectElectric fieldsen_AU
dc.subjectDensityen_AU
dc.titleThe Site and High Field βNMR Properties of 8Li+ Implanted in α-Al2O3en_AU
dc.typeConference Paperen_AU
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