Critical behavior of Hall conductivity and magnetoconductivity near the percolation threshold in granular Sn:Ar mixtures

M. Rohde and H. Micklitz

Physica A: Statistical Mechanics and its Applications, 1989, vol. 157, issue 1, 120-124

Abstract: We have measured the Hall conductivity and the magnetoconductivity on the metallic side of the metal insulator transition (MIT) in a three dimensional (3D) percolating system, namely the metal rare gas mixture Sn:Ar. The Hall constant RH diverges as RH ∝ (ν − νc)−g with the critical volume fraction νc = 0.26 ± 0.01 and the critical exponent g = 0.49 ± 0.07. The magnetoconductivity Δσ scales as −Δσ ∝ (ν − νc)t′ with critical exponent t′ = 1.9 ± 0.15, which is slightly larger than the conductivity exponent t = 1.6 ± 0.1. The experimental value of g agrees quite well with the value obtained by Monte Carlo simulation, whereas the observed difference between t and t′ is in contradiction to theory.

Date: 1989
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/0378437189902859
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:157:y:1989:i:1:p:120-124

DOI: 10.1016/0378-4371(89)90285-9

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().