Fracton excitation and Lévy flight dynamics in alkali silicate glasses | Zendy

Junko Habasaki | Zendy; Isao Okada | Zendy; Yasuaki Hiwatari | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Fracton excitation and Lévy flight dynamics in alkali silicate glasses

Author(s) -

Junko Habasaki,

Isao Okada,

Yasuaki Hiwatari

Publication year - 1997

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.55.6309

Subject(s) - fracton , alkali metal , lithium (medication) , ion , relaxation (psychology) , diffusion , silicate , materials science , molecular dynamics , excitation , mean squared displacement , dynamics (music) , chemical physics , physics , thermodynamics , medicine , psychology , mathematical analysis , social psychology , mathematics , quantum mechanics , astronomy , acoustics , fractal , endocrinology

We have examined the relaxation behavior of alkali metal ions in lithium metasilicate glasses by means ofmolecular dynamics simulation. We have observed a change of slope of the mean squared displacement at;300 ps. In shorter time regions, localized motion of lithium ions within neighboring sites is observed, whichis caused by the small fracton dimension ~fracton excitation!. On the other hand, an accelerated motion ofparticles due to cooperative jumps is found, which characterizes the diffusion and conduction mechanisms ofthe alkali metal ions in longer time regions. The dynamics of accelerated motion is discussed in relation toLe´vy flight dynamics. @S0163-1829~97!03510-8

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research