Nature of vibrational eigenmodes in topologically disorderedsolids
2002 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, Vol. 65, 104302- p.Article in journal (Refereed) Published
We use a local projectional analysis method to investigate theeffect of topological disorder on the vibrational dynamics in a modelglass simulated by molecular dynamics. It is shown that the vibrational eigenmodes in the glass aregenerically related to the corresponding eigenmodes of its crystallinecounterpart via disorder-induced level-repelling and hybridizationeffects. It is demonstrated that the effect of topological disorder in theglass on the dynamical matrix can be simulated by introducingpositional disorder in a crystalline counterpart.
Place, publisher, year, edition, pages
APS , 2002. Vol. 65, 104302- p.
Disordered solids, Phonons, Vibrational states
Condensed Matter Physics Atom and Molecular Physics and Optics
Research subject Materials Science
IdentifiersURN: urn:nbn:se:su:diva-29016DOI: 10.1103/PhysRevB.65.104302OAI: oai:DiVA.org:su-29016DiVA: diva2:228575