Nom de l’auteur/autrice :admin

Friedel Oscillations and Charge-density Waves Pinning in Quasi-one-dimensional Conductors: An X-ray Access

Sylvain Ravy 1, Stephan Rouzière 2, Jean-Paul Pouget 1, Serguei Brazovskii 3 Synthetic Metals 120 (2001) 1075 We present an x-ray diffraction study of the Vanadium-doped blue bronze K0.3(Mo0.972V0.028)O3. At low temperature, we have observed both an intensity asymmetry of the +-2kF satellite reflections relative to the pure compound, and a profile asymmetry of each satellite reflections. We show that the profile asymmetry […]

Friedel Oscillations and Charge-density Waves Pinning in Quasi-one-dimensional Conductors: An X-ray Access Lire la suite »

Force-velocity relation and density profiles for biased diffusion in an adsorbed monolayer

O. Benichou 1, 2, A. M. Cazabat 3, J. De Coninck, M. Moreau 2, G. Oshanin 2 Physical Review B 63 (2001) 235413 In this paper, which completes our earlier short publication [Phys. Rev. Lett. 84, 511 (2000)], we study dynamics of a hard-core tracer particle (TP) performing a biased random walk in an adsorbed monolayer, composed of mobile hard-core particles undergoing continuous exchanges with

Force-velocity relation and density profiles for biased diffusion in an adsorbed monolayer Lire la suite »

Equilibrium valleys in spin glasses at low temperature

Enzo Marinari 1, Olivier C. Martin 2, Francesco Zuliani 2 Physical Review B 64 (2001) 184413 We investigate the 3-dimensional Edwards-Anderson spin glass model at low temperature on simple cubic lattices of sizes up to L=12. Our findings show a strong continuity among T>0 physical features and those found previously at T=0, leading to a scenario with emerging mean field like characteristics

Equilibrium valleys in spin glasses at low temperature Lire la suite »

Discrete thermodynamic Bethe ansatz

Michel Bergere 1, Ken-Ichiro Imura 2, Stéphane Ouvry 2 Nuclear Physics B 608 (2001) 577 We propose discrete TBA equations for models with discrete spectrum. We illustrate our construction on the Calogero-Moser model and determine the discrete 2-body TBA function which yields the exact N-body Calogero-Moser thermodynamics. We apply this algorithm to the Lieb-Liniger model in a harmonic well, a model

Discrete thermodynamic Bethe ansatz Lire la suite »

Retour en haut