CRITICAL NEED FOB S(k,ω) DETERMINATIONS IN AMORPHOUS SiO2: CALCULATION OP PHYSICAL PROPERTIES VIA FROZEN LIQUID PHONONS

摘要: ABSTRACT The Siegel(l)-Percus-Yevick(2) theory of liquid phonons in liquids is extended to the concept frozen (FLP) amorphous solids following Takeno and Goda(3), powdered crystalline Ohshima et.al.(4), Nakanishi Matsubara(4) Matsubara Slegel(4). connection SPY theory's those independently derived generalized R.P.A. Hubbard Beeby(5) scattering Egelstaff (6), as well corroborating experimental data glass phonon dispersion relations(esp. SiO2 BeF2) (6)(8-13) put on firmer ground. Connection also made with recent work Tanttila(2l). New characteristic features terms their FLP relations: isotropic non-monatioity, an effective temperature, scaling these parameters properties respect pressure composition(allowing for oonfigurational substitutional disorder), a law corresponding states between glasses, powders, distinctive(set) disorder parameter(s) new model predictive capacity from S(k,ω) determinations Anderson localization glasses are first time presented. Application attempted BeF2.