Electronic states of Mn4+ ions in p-type GaN

Simple item page
dc.creatorHan, B.
dc.creatorWessels, B. W.
dc.creatorUlmer, M. P.
dc.date2004-06-09
dc.date.accessioned2026-07-07T02:58:34Z
dc.date.available2026-07-07T02:58:34Z
dc.descriptionThe electronic states of manganese in p-type GaN are investigated using photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. A series of sharp PL lines at 1.0 eV is observed in codoped GaN and attributed to the intra d-shell transition 4T2(F)-4T1(F) of Mn4+ ions. PLE spectrum of the Mn4+ [4T2(F)-4T1(F)] luminescence reveals intra-center excitation processes via the excited states of Mn4+ ions. PLE peaks observed at 1.79 and 2.33 eV are attributed to the intra d-shell 4T1(P)-4T1(F) and 4A2(F)-4T1(F) transitions of Mn4+, respectively. In addition to the intra-shell excitation processes, a broad PLE band involving charge-transfer transition of the Mn4+/3+ deep level is observed, which is well described by the Lucovsky model. As determined from the onset of this PLE band, the position of the Mn4+/3+ deep level is 1.11 eV above the valence band maximum, which is consistent with prior theory using ab initio calculations. Our work indicates 4+ is the predominant oxidation state of Mn ions in p-type GaN:Mn when the Fermi energy is lower than 1.11 eV above the valence band maximum.
dc.descriptionSubmitted to Appl. Phys. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0406228
dc.identifierhttp://arxiv.org/abs/cond-mat/0406228
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24145
dc.subjectMaterials Science
dc.titleElectronic states of Mn4+ ions in p-type GaN
dc.typetext

Files

Collections

arXiv