Effects of high pressure on the optical absorption spectrum of scintillating PbWO4 crystals

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dc.creatorErrandonea, D.
dc.creatorMartinez-Garcia, D.
dc.creatorLacomba-Perales, R.
dc.creatorRuiz-Fuertes, J.
dc.creatorSegura, A.
dc.date2006-05-26
dc.date2006-09-06
dc.date.accessioned2026-07-07T07:09:13Z
dc.date.available2026-07-07T07:09:13Z
dc.descriptionThe pressure behavior of the absorption edge of PbWO4 was studied up to 15.3 GPa. It red-shifts at -71 meV/GPa below 6.1 GPa, but at 6.3 GPa the band-gap collapses from 3.5 eV to 2.75 eV. From 6.3 GPa to 11.1 GPa, the absorption edge moves with a pressure coefficient of -98 meV/GPa, undergoing additional changes at 12.2 GPa. The results are discussed in terms of the electronic structure of PbWO4 which attribute the behavior of the band-gap to changes in the local atomic structure. The changes observed at 6.3 GPa and 12.2 GPa are attributed to phase transitions.
dc.description14 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0605649
dc.identifierhttp://arxiv.org/abs/cond-mat/0605649
dc.identifierApplied Physics Letters 89, 091913 (2006)
dc.identifierdoi:10.1063/1.2345228
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110979
dc.subjectMaterials Science
dc.subjectInstrumentation and Detectors
dc.titleEffects of high pressure on the optical absorption spectrum of scintillating PbWO4 crystals
dc.typetext

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