Atomic-scale structure of Ga1-xInxP alloys measured with extended x-ray absorption fine structure spectroscopy

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dc.contributor.authorSchnohr, CSen_AU
dc.contributor.authorAraujo, LLen_AU
dc.contributor.authorKluth, Pen_AU
dc.contributor.authorSprouster, DJen_AU
dc.contributor.authorForan, GJen_AU
dc.contributor.authorRidgway, MCen_AU
dc.date.accessioned2009-08-24T04:04:44Zen_AU
dc.date.accessioned2010-04-30T05:07:13Zen_AU
dc.date.available2009-08-24T04:04:44Zen_AU
dc.date.available2010-04-30T05:07:13Zen_AU
dc.date.issued2008-09en_AU
dc.date.statistics2008-09en_AU
dc.description.abstractExtended x-ray absorption fine structure spectroscopy was used to measure the interatomic distance distributions of the first three nearest-neighbor (NN) shells around Ga and In atoms in Ga1-xInxP. The first NN shell has a composition-dependent bimodal distance distribution with a relaxation parameter of epsilon= 0.80 +/-0.04 similar to other III-V ternary alloys. The second NN shell distance distribution remains multimodal, corresponding to the three different cation-cation pairs but is closer to the virtual-crystal approximation (VCA). The third NN shell mean distance is well approximated by the VCA although the distribution is significantly broadened. Predictive model calculations are discussed in detail where good agreement with experimental results is found. Like in Ga1-xInxAs, lattice mismatch is accommodated in Ga1-xInxP by both bond-length and bond-angle relaxations although primarily via the latter. © 2008, American Physical Societyen_AU
dc.identifier.citationSchnohr, C. S., Araujo, L. L., Kluth, P., Sprouster, D. J., Foran, G. J., & Ridgway, M. C. (2008). Atomic-scale structure of Ga1-xInxP alloys measured with extended x-ray absorption fine structure spectroscopy. Physical Review B, 78(11), 8. doi:10.1103/PhysRevB.78.115201en_AU
dc.identifier.govdoc1461en_AU
dc.identifier.issn1098-0121en_AU
dc.identifier.issue11en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.pagination8en_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.78.115201en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1710en_AU
dc.identifier.volume78en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectFine structureen_AU
dc.subjectGalliumen_AU
dc.subjectSpectroscopyen_AU
dc.subjectSolar cellsen_AU
dc.subjectAlloysen_AU
dc.subjectCrystalsen_AU
dc.titleAtomic-scale structure of Ga1-xInxP alloys measured with extended x-ray absorption fine structure spectroscopyen_AU
dc.typeJournal Articleen_AU
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