On the approximation of transport properties in structured materials using momentum-transfer theory

Boyle, G.J., White, R.D., Robson, R.E., Dujko, S., and Petrovic, Z.Lj. (2012) On the approximation of transport properties in structured materials using momentum-transfer theory. New Journal of Physics, 14. 045011. pp. 1-25.

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Abstract

In this paper, we present a fluid model for electrons and positrons in structured and soft-condensed matter utilizing dilute gas phase cross-sections together with a structure factor for the medium. Generalizations of the Wannier energy and Einstein (Nernst–Townsend) relations to account for coherent scattering effects present in soft-condensed matter are presented along with new expressions directly relating transport properties in the dilute gas and the structured matter phases. The theory is applied to electrons in a benchmark Percus–Yevick model and positrons in liquid argon, and the accuracy is tested against a multi-term solution of Boltzmann's equation (White and Robson 2011 Phys. Rev. E 84 031125).

Item ID: 22699
Item Type: Article (Research - C1)
ISSN: 1367-2630
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Date Deposited: 01 Aug 2012 09:57
FoR Codes: 02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020201 Atomic and Molecular Physics @ 80%
02 PHYSICAL SCIENCES > 0204 Condensed Matter Physics > 020405 Soft Condensed Matter @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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