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dc.contributor.authorDONEGAN, JOHNen
dc.date.accessioned2010-02-11T13:53:58Z
dc.date.available2010-02-11T13:53:58Z
dc.date.issued1991en
dc.date.submitted1991en
dc.identifier.citationDonegan, J.F., Jeon, D.Y., Watkins, G.D., Optical detection of electron-nuclear double resonance for an S=1 luminescent center in GaP:O, Physical Review B, 43, 3, 1991, 2141 - 2151en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/37647
dc.descriptionPUBLISHEDen
dc.description.abstractThe origin of a triplet (S=1) optically detected magnetic-resonance (ODMR) spectrum observed in the luminescence of GaP:O has been the subject of recent controversy. Originally identified with the negative-charge state of a substitutional oxygen impurity, more recent suggestions have interpreted a resolved I=3/2 hyperfine interaction in the ODMR to indicate an interstitial-gallium-related defect. We report here optical detection of electron-nuclear double resonance (ODENDOR) of the central I=3/2 nucleus and confirm unambiguously that it is gallium. Its magnetic hyperfine and nuclear quadrupole interactions are determined and an improved analysis of the electron spin Hamiltonian is presented. A possible model for the defect is suggested: a ?100?-oriented GaiVGa pair stabilized by the presence of one or two nearby substitutional oxygen donors. The ODENDOR spectrum arises from the M=0 state, causing unusual magnetic-field and orientation effects. The origin of these effects is described and the procedure of analysis to extract the hyperfine parameters is outlined.en
dc.format.extent2141en
dc.format.extent2151en
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseries43en
dc.relation.ispartofseries3en
dc.rightsYen
dc.subjectPhysics
dc.subjectPhysics
dc.titleOptical detection of electron-nuclear double resonance for an S=1 luminescent center in GaP:Oen
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/jdoneganen
dc.identifier.rssinternalid6063en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.43.2141en
dc.identifier.rssurihttp://dx.doi.org/10.1103/PhysRevB.43.2141
dc.identifier.orcid_id0000-0002-5240-1434en


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