Please use this identifier to cite or link to this item: https://libjncir.jncasr.ac.in/xmlui/handle/10572/726
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dc.contributor.authorPradhan, Gopal Krushna-
dc.contributor.authorNarayana, Chandrabhas-
dc.contributor.authorRao, Mala Narasappaya-
dc.contributor.authorD'Astuto, Matteo-
dc.contributor.authorChaplot, Samrath Lal-
dc.contributor.authorPages, Olivier-
dc.contributor.authorBreidi, A-
dc.contributor.authorSouhabi, Jihane-
dc.contributor.authorPostnikov, Andrei-
dc.contributor.authorDeb, Sudip Kumar-
dc.contributor.authorGanguli, Tapas-
dc.contributor.authorPolian, Alain-
dc.contributor.authorBhalerao, Gopalkrishna-
dc.contributor.authorShukla, Abhay-
dc.contributor.authorFirszt, Franciszek-
dc.contributor.authorPaszkowicz, Wojciech-
dc.date.accessioned2012-03-22T05:42:30Z-
dc.date.available2012-03-22T05:42:30Z-
dc.date.issued2011-05-
dc.identifier0021-4922en_US
dc.identifier.citationJapanese Journal of Applied Physics 50(5), 05FE02-(1-4) (2011)en_US
dc.identifier.urihttps://libjncir.jncasr.ac.in/xmlui/10572/726-
dc.descriptionRestricted Accessen_US
dc.description.abstractWe explore two basic issues behind the 1-bond -> 2-mode percolation scheme that has recently lead to a unification of the classification of the Raman and infrared spectra of usual zincblende semiconductor alloys. In doing so we focus on the model ZnBeSe alloy, for which the percolation scheme was originally developed. First, we show by using inelastic neutron scattering that the well-resolved 1-bond -> 2-mode percolation doublet of the short Be-Se bond detected close to the zone center by Raman and infrared spectra remains observable throughout the whole Brillouin zone up to the zone edge. This testifies for an origin at the bond scale. Second, high-pressure is used to disable a Fano interference which screens the Zn-Se Raman signal, revealing a distinct Zn-Se percolation doublet. This provides experimental evidence that the 1-bond -> 2-mode percolation scheme is generic, and may, in principle, apply to all bonds in an alloy.en_US
dc.description.urihttp://dx.doi.org/10.1143/JJAP.50.05FE02en_US
dc.languageEnglishen
dc.language.isoenen_US
dc.publisherJapan Society of Applied Physicsen_US
dc.rights© 2011 The Japan Society of Applied Physicsen_US
dc.subjectMixed Crystalsen_US
dc.titleThe Phonon Percolation Scheme for Alloys: Extension to the Entire Lattice Dynamics and Pressure Dependenceen_US
dc.typeArticleen_US
Appears in Collections:Research Articles (Chandrabhas N.)

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