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Article: Microscopic Structure of DX Centers in Cd0.8Zn0.2Te:Cl

TitleMicroscopic Structure of DX Centers in Cd0.8Zn0.2Te:Cl
Authors
KeywordsPhysics
Issue Date1997
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 1997, v. 79 n. 22, p. 4473-4476 How to Cite?
AbstractPhotoexcitation of chlorine DX centers induces a transition of the Cl atoms to the shallow-donor state and persistent photoconductivity at low temperature in Cd0.8Zn0.2Te:Cl. The relaxation of the substitutional Cl atoms to the DX state at 140 K is coincident with a decrease of the positron line-shape parameter and an increase of annihilation with high-momentum core electrons. The results indicate positron trapping and annihilation at DX centers and at chlorine A centers. The data support the bond breaking model of the DX centers and the outward relaxation of the Cl and Cd(Zn) atoms along the [111] direction. The thermal barrier for the shallow-deep transition was found to be 0.44 eV.
Persistent Identifierhttp://hdl.handle.net/10722/42178
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorShan, YYen_HK
dc.contributor.authorLynn, KGen_HK
dc.contributor.authorSzeles, Cen_HK
dc.contributor.authorAsoka-Kumar, Pen_HK
dc.contributor.authorThio, Ten_HK
dc.contributor.authorBennett, JWen_HK
dc.contributor.authorBeling, CDen_HK
dc.contributor.authorFung, SHYen_HK
dc.contributor.authorBecla, Pen_HK
dc.date.accessioned2007-01-08T02:31:05Z-
dc.date.available2007-01-08T02:31:05Z-
dc.date.issued1997en_HK
dc.identifier.citationPhysical Review Letters, 1997, v. 79 n. 22, p. 4473-4476en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42178-
dc.description.abstractPhotoexcitation of chlorine DX centers induces a transition of the Cl atoms to the shallow-donor state and persistent photoconductivity at low temperature in Cd0.8Zn0.2Te:Cl. The relaxation of the substitutional Cl atoms to the DX state at 140 K is coincident with a decrease of the positron line-shape parameter and an increase of annihilation with high-momentum core electrons. The results indicate positron trapping and annihilation at DX centers and at chlorine A centers. The data support the bond breaking model of the DX centers and the outward relaxation of the Cl and Cd(Zn) atoms along the [111] direction. The thermal barrier for the shallow-deep transition was found to be 0.44 eV.en_HK
dc.format.extent106043 bytes-
dc.format.extent9781 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.orgen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review Letters. Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleMicroscopic Structure of DX Centers in Cd0.8Zn0.2Te:Clen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=79&issue=22&spage=4473&epage=4476&date=1997&atitle=Microscopic+Structure+of+DX+Centers+in+Cd0.8Zn0.2Te:Clen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevLett.79.4473en_HK
dc.identifier.hkuros28846-
dc.identifier.isiWOS:A1997YJ38800044-

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