Pre-exponential factor for the crystallization of glassy Se₈₀Te₂₀ and Se₇₅Te₂₀M₅ alloys: applicability of Meyer-Neldel rule

摘要

The Meyer-Neldel rule or MN rule (also known as compensation effect) is an empirical law known since 1937. This rule is observed in wide range of phenomena in physics, chemistry, biology and electronics. Many activated phenomena, including solid state diffusion in crystals and polymers, dielectric relaxation, conduction and thermally stimulated processes in polymers, and electronic conduction in amorphous semiconductors obey the MN rule. In the present article, we report the MN rule in the non-isothermal crystallization in glassy Se₈₀Te₂₀ and Se₇₅Te₂₀M₅ (M = Ag, Cd, In, Sb) alloys. We have observed MN rule between pre-exponential factor K _o and activation energy of crystallization E _c in the present case for thermally activated non-isothermal crystallization.View full textDownload full textKeywordschalcogenides, glassy alloys, thermally activated crystallization, differential scanning calorimetryRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/01411590802699497