Polarizability Fluctuations in Dielectric Materials with Quenched Disorder
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The Department of Chemistry seeks to provide students with a foundation in the fundamentals and application of chemical theories and processes of the lab. Thus prepared they me pursue careers as teachers, industry supervisors, or research chemists in a variety of domains (governmental, academic, etc).
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The Department of Chemistry was founded in 1880.
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1880-present
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- College of Liberal Arts and Sciences (parent college)
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Abstract
We study a model of dielectric response for spatially disordered materials. In this model the local polarizability αr is a quenched random variable. From a one-loop level renormalization-group analysis, we predict that with increasing length scale L, the dimensionless fluctuation strength α¯σ,where 1/α¯ and σ2 are the average and the variance of the distribution for 1/αr, decays as 1/L2universally at large length scales. The interplay of the random polarizability and the long-range dipole-dipole interaction is discussed.
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This article is from Physical Review E 62 (2000: 4698, doi:10.1103/PhysRevE.62.4698. Posted with permission.