Zobrazeno 1 - 10 of 63 pro vyhledávání: '"R. Bidaux"'
2
Driven diffusion of particles, first-passage front, and interface growth
Autor: Ras B. Pandey, R. Bidaux
Publikováno v: Physical Review E. 48:2382-2385
We study a computer-simulation model for driven particles on a discrete lattice where a fraction p of the lattice sites is randomly occupied by frozen impurities (barriers), and an imposed bias governs the particles'hopping through the lattice. These
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39821451d77b8ed47138fa2e4489259e
https://doi.org/10.1103/physreve.48.2382
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3
Finite-size behavior of relaxation times in stochastic models with accumulating fixed points
Autor: R. Bidaux, Vladimir Privman, Boris D. Lubachevsky
Publikováno v: Physical Review A. 44:6213-6218
We report numerical and analytical studies of the finite-size time scales in a system with microscopic stochastic dynamics that in the bulk limit corresponds to an evolution equation with an accumulation point of critical fixed points. Our results su
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a360d993b62a76256fc3867cdb96efe
https://doi.org/10.1103/physreva.44.6213
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4
Dipolar interactions in rare earth orthoferrites—II TbFeO3
Autor: J.E. Bouree, R. Bidaux, J. Hammann
Publikováno v: Journal of Physics and Chemistry of Solids. 36:655-659
The low temperature magnetic properties of TbFeO 3 are well accounted for by ascribing a leading part to dipolar interactions. The issue of the competition between the two ordered magnetic phases observed experimentally depends then in a crucial way
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33c735785088c645b628d33de91f0eba
https://doi.org/10.1016/0022-3697(75)90083-9
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5
Behaviour at ok and at different magnetic fields of the double magnetic helix
Autor: R. Plumier, M. Sougi, M. Lecomte, R. Bidaux
Publikováno v: Journal of Physics and Chemistry of Solids. 44:765-772
We study the behaviour at 0K and at all magnetic field values up to the magnetic saturation of the magnetic helix in which two distinct magnetic ions of spin lengths S 1 , and S 2 are acted on by two unequal molecular fields. Although limited to the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ea79ad18e092f3e5332f08993a4974e
https://doi.org/10.1016/0022-3697(83)90008-2
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8
Directed bond percolation on a square lattice. I. Analytical results
Autor: G Forgacs, R Bidaux
Publikováno v: Journal of Physics A: Mathematical and General. 17:1853-1860
A rigorous mathematical formulation of directed percolation is given in terms of matrix recursion equations. The Domany-Kinzel limit is rederived in a very simple way. Expansion around this limit yields surprisingly good results for the percolation p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e1dc7bc936a4bcf4a9c88da36774e84
https://doi.org/10.1088/0305-4470/17/9/020
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9
Dilute bond Ising model and percolation
Autor: G. Sarma, R. Bidaux, J.P. Carton
Publikováno v: Journal of Physics A: Mathematical and General. 9:L87-L91
A formulation of the dilute bond Ising model is derived in terms of an equivalent Hamiltonian. A temperature concentration phase diagram is proposed. It is shown that, although no spin-glass is expected, the confluence at T=0 of the respective condit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e733c1b4b01729aa93bc75b9f977cd3
https://doi.org/10.1088/0305-4470/9/8/002
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