Beta-Detected NQR in Zero Field with a Low Energy Beam of \nuc{8}{Li}$^+$

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dc.creatorSalman, Z.
dc.creatorKiefl, R. F.
dc.creatorChow, K. H.
dc.creatorMacFarlane, W. A.
dc.creatorArseneau, D. J.
dc.creatorDaviel, S.
dc.creatorLevy, C. D. P.
dc.creatorMaeno, Y.
dc.creatorPoutissou, R.
dc.date2005-11-14
dc.date.accessioned2026-07-07T06:46:07Z
dc.date.available2026-07-07T06:46:07Z
dc.descriptionBeta-detected nuclear quadrupole resonances (\bnqr) at zero field are observed using a beam of low energy highly polarized radioactive \nuc{8}{Li}$^+$. The resonances were detected in SrTiO$_3$, Al$_2$O$_3$ and Sr$_2$RuO$_4$ single crystals by monitoring the beta-decay anisotropy as a function of a small audio frequency magnetic field. The resonances show clearly that \nuc{8}{Li} occupies one site with non-cubic symmetry in SrTiO$_3, two in Al$_2$O$_3$ and three sites in Sr$_2$RuO$_4$. The resonance amplitude and width are surprisingly large compared to the values expected from transitions between the $|\pm 2> \leftrightarrow |\pm 1>$ spin states, indicating a significant mixing between the $|\pm m>$ quadrupolar split levels.
dc.descriptionaccepted for publication in Physica B
dc.identifierhttps://arxiv.org/abs/cond-mat/0511356
dc.identifierhttp://arxiv.org/abs/cond-mat/0511356
dc.identifierPhysica B, 374-375, 468 (2006)
dc.identifierdoi:10.1016/j.physb.2005.11.168
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103236
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleBeta-Detected NQR in Zero Field with a Low Energy Beam of \nuc{8}{Li}$^+$
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