The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Measurement and interpretation of nonuniversal critical exponents in disordered conductor–insulator composites
Abstract
The dc resistivity of carbon-black--polymer composites as a function of carbon-black concentration has been measured and fit to a power law, yielding a conductivity critical exponent t=2.9\ifmmode\pm\else\textpm\fi{}0.1. This value is in excellent agreement with the mean-field value t=3. The sample-to-sample variations in resistivity at each concentration also show power-law behavior. If interpreted as due to correlation length fluctuations, these data yield a correlation-length critical exponent \ensuremath{\nu}=0.51\ifmmode\pm\else\textpm\fi{}0.02. This value is in excellent agreement with the mean-field value \ensuremath{\nu}=1/2. These results suggest that nonuniversal (t\ensuremath{\ne}2) transport behavior in this and similar composites is caused by the composite being outside the universal scaling regime and in the mean-field regime.
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Cites
Kirkpatrick, S. (1973) · Reviews of Modern Physics · doi:10.1103/revmodphys.45.574 · Cited by 5,260
Cited by
Qin, F., & Brosseau, C. (2012) · Journal of Applied Physics · doi:10.1063/1.3688435 · Cited by 1,202
The challenge of ceramic/metal microcomposites and nanocomposites
Moya, J. S., Lopez-Esteban, S., & Pecharromán, C. (2007) · Progress in Materials Science · doi:10.1016/j.pmatsci.2006.09.003 · Cited by 358
Model for the Viscosity of Particle Dispersions
BICERANO, J., DOUGLAS, J. F., & BRUNE, D. A. (1999) · Journal of Macromolecular Science, Part C: Polymer Reviews · doi:10.1081/mc-100101428 · Cited by 271
Broadband ac conductivity of conductor-polymer composites
Connor, M. T., Roy, S., Ezquerra, T. A., & Baltá Calleja, F. J. (1998) · Physical Review B · doi:10.1103/physrevb.57.2286 · Cited by 271
Metadata
- Authors
- Heaney, M. B.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1995-11-01
- Volume
- 52
- Issue
- 17
- Pages
- 12477-12480
- ISSN
- 0163-1829 (ISSN-L)
- 1095-3795
- OpenAlex
- W2015737350
- Cited by
- 181
- References
- 1
- FWCI
- 2.22
- Type
- journal article
- Language
- en
- Open access
- closed
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