Dresden 2009 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 35: Poster Session II
MM 35.7: Poster
Mittwoch, 25. März 2009, 16:30–18:30, P4
A theory for electrical resistivity for amorphous metals — •golam Mohammed bhuiyan1, md. abdur rashid2, and a. z. ziauddin ahmed3 — 1department of theoretical physics, university of dhaka, dhaka-1000, bangladesh — 2department of physics, university of dhaka, dhaka-1000, bangladesh — 3department of physics, university of dhaka, dhaka-1000, bangladesh
An attempt has been made to develop a theory for the electrical resistivity for amorphous metals beyond the Ziman's formalism. The starting point of the proposed theory is the Baym's general formula for electrical resistivity. The Baym's theory is then extended within the quasi-crystalline approximation to have two important terms describing the normal and Umklapp scattering. The present theory thus gives a better picture to understand basic scattering processes which are very much involved in the real electronic transport mechanism. The proposed theory will also give better insight to understand resistivity of disordered systems like liquid metals in particular in the supercooled state.