Transport velocity in two-dimensional random media
- Institut fuer Theorie der Kondensierten Materie, Universitaet Karlsruhe, 76128, Karlsruhe (Germany)
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
- Research Center of Crete, Foundation for Research Technolog-Hellas (FORTH) and Department of Physics, University of Crete, P.O. Box 1527, 71110 Heraklion, Crete (Greece)
We study the transport properties of a two-dimensional randomly disordered dielectric medium. The medium consists of infinitely long dielectric cylinders with a real dielectric constant {epsilon}{sub {ital a}}, embedded in a different dielectric medium with {epsilon}{sub {ital b}}=1. The transport velocity is calclated within the low-density approximation of the Bethe-Salpeter equation and within the coated extension of the well-known coherent-potential approximation for a random arrangement of dielectric cylinders. Results for the long-wavelength effective dielectric constant, phase velocity, and transport velocity are presented for both the {ital s} and {ital p} polarization of electromagnetic waves. In addition, it is found that localization is achieved more easily for the {ital s} than for the {ital p} polarization.
- Research Organization:
- Ames National Laboratory
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 118416
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 15 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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