Analysis of mixed optical transitions in dilute magnetic AlAs/GaAs/ GaMnAs quantum wells grown on high substrate index by molecular beam epitaxy

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dc.authoridGunes, Mustafa/0000-0002-7974-0540
dc.authoridAYDIN, MUSTAFA/0000-0002-1002-6007
dc.authoridErol, Ayse/0000-0003-4196-1791
dc.authoridDonmez, Omer/0000-0002-7635-3991
dc.contributor.authorKerimova, Shemshat
dc.contributor.authorDonmez, Omer
dc.contributor.authorGunes, Mustafa
dc.contributor.authorKuruoglu, Furkan
dc.contributor.authorAydin, Mustafa
dc.contributor.authorGumus, Cebrail
dc.contributor.authorErol, Ayse
dc.date.accessioned2025-01-06T17:43:50Z
dc.date.available2025-01-06T17:43:50Z
dc.date.issued2023
dc.description.abstractIn this study, we report the influence of high-index substrate orientation on the optical properties of dilute Mn containing a single quantum well (QW) structure grown by molecular beam epitaxy (MBE). The electronic band structure of the samples is calculated with finite element methods (FEM). Photomodulated reflectance (PR) spectroscopy is employed to determine the optical transition energies at room temperature. PR experimental results are analyzed with the Third Derivative Functional Form (TDFF) signal function. TDFF fitting shows that the optical transition starts below the fundamental GaAs bandgap energy for the samples grown on (311) B and (411) B-oriented substrates. Comparing TDFF fitting and calculated optical transition energies with FEM show that the optical transition occurs in type-I and type-II as direct and indirect transitions, respectively. Type-I and -II optical transitions are addressed concerning the electronic band structure of the sample grown on oriented substrates.
dc.description.sponsorshipScientific Research Projects Coor- dination Unit of Istanbul University [FBG-2022-38573]
dc.description.sponsorshipThis study was supported by the Scientific Research Projects Coor- dination Unit of Istanbul University (Project No: FBG-2022-38573) . We want to thank M. Henini for supplying the samples.
dc.identifier.doi10.1016/j.mseb.2023.116349
dc.identifier.issn0921-5107
dc.identifier.issn1873-4944
dc.identifier.scopus2-s2.0-85147542240
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.mseb.2023.116349
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2827
dc.identifier.volume290
dc.identifier.wosWOS:000994678900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofMaterials Science and Engineering B-Advanced Functional Solid-State Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectOptical transition
dc.subjectGaMnAs
dc.subjectPhotomodulated reflectance
dc.subjectHigh index substrate
dc.subjectFinite element methods
dc.titleAnalysis of mixed optical transitions in dilute magnetic AlAs/GaAs/ GaMnAs quantum wells grown on high substrate index by molecular beam epitaxy
dc.typeArticle

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