Exponential band tails

C. M. Soukoulis; M. H. Cohen

doi:10.1016/0022-3093(84)90332-6

Exponential band tails

C. M. Soukoulis, M. H. Cohen

Research output: Contribution to journal › Article › peer-review

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Abstract

We present a simple derivation of the exponential band tails universally observed in three dimensional disordered systems. By combining the Halperin-Lax type theories with the scaling theory of localization we find that the logarithm of the density of states behaves as |E|^y where y = 2 - d/2 for d < 2 in agreement with previous theories and y=1 for d > 2. d is the space dimensionality.

Original language	English (US)
Pages (from-to)	279-283
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	66
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-3093(84)90332-6
State	Published - Jul 1984
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(84)90332-6

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title = "Exponential band tails",

abstract = "We present a simple derivation of the exponential band tails universally observed in three dimensional disordered systems. By combining the Halperin-Lax type theories with the scaling theory of localization we find that the logarithm of the density of states behaves as |E|y where y = 2 - d/2 for d < 2 in agreement with previous theories and y=1 for d > 2. d is the space dimensionality.",

author = "Soukoulis, {C. M.} and Cohen, {M. H.}",

year = "1984",

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AU - Cohen, M. H.

PY - 1984/7

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N2 - We present a simple derivation of the exponential band tails universally observed in three dimensional disordered systems. By combining the Halperin-Lax type theories with the scaling theory of localization we find that the logarithm of the density of states behaves as |E|y where y = 2 - d/2 for d < 2 in agreement with previous theories and y=1 for d > 2. d is the space dimensionality.

AB - We present a simple derivation of the exponential band tails universally observed in three dimensional disordered systems. By combining the Halperin-Lax type theories with the scaling theory of localization we find that the logarithm of the density of states behaves as |E|y where y = 2 - d/2 for d < 2 in agreement with previous theories and y=1 for d > 2. d is the space dimensionality.

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U2 - 10.1016/0022-3093(84)90332-6

DO - 10.1016/0022-3093(84)90332-6

M3 - Article

AN - SCOPUS:0021468398

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EP - 283

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 1-2

ER -

Exponential band tails

Abstract

All Science Journal Classification (ASJC) codes

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