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Randomly dilute Ising model: A nonperturbative approach

Matthieu Tissier
(
- Unlisted
)
,
Dominique Mouhanna
(
- Unlisted
)
,
Julien Vidal
(
- Paris U., VI-VII, GPS
)
,
Bertrand Delamotte
(
- Unlisted
)

Sep 10, 2001

4 pages

Published in:

Phys.Rev.B 65 (2002) 140402

e-Print:

cond-mat/0109176 [cond-mat.stat-mech]

DOI:

10.1103/PhysRevB.65.140402

View in:

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Abstract: (APS)

The N-vector cubic model relevant, among others, to the physics of the randomly dilute Ising model is analyzed in arbitrary dimension by means of an exact renormalization-group equation. This study provides a unified picture of its critical physics between two and four dimensions. We give the critical exponents for the three-dimensional randomly dilute Ising model that are in good agreement with experimental and numerical data. The relevance of the cubic anisotropy in the O(N) model is also treated.

Note:

4 pages, published version

11.15.Tk
64.60.-i
11.10.Hi
75.10.Nr

References(32)

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