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6 papers · 1 filter
1/f Noise In Low Density Two-Dimensional Hole Systems In GaAs
G. Deville, R. Leturcq, D. L'Hote +3
Two-dimensional electron or hole systems in semiconductors offer the unique opportunity to investigate the physics of strongly interacting fermions. We have measured the 1/f resist…
Interacting electron systems between Fermi leads: effective one-body transmissions and correlation clouds
Rafael A. Molina, Dietmar Weinmann, Jean-Louis Pichard
In order to extend the Landauer formulation of quantum transport to correlated fermions, we consider a spinless system in which charge carriers interact, connected to two reservoir…
Magnetic density of states at low energy in geometrically frustrated systems
A. Yaouanc, P. Dalmas de Reotier, V. Glazkov +6
Using muon-spin-relaxation measurements we show that the pyrochlore compound Gd2Ti2O7, in its magnetically orderered phase below ~ 1 K, displays persistent spin dynamics down to te…
Non-perturbative fixed point in a non-equilibrium phase transition
L. Canet, H. Chaté, B. Delamotte +2
We apply the non-perturbative renormalization group method to a class of out-of-equilibrium phase transitions (usually called ``parity conserving'' or, more properly, ``generalized…
Dynamics of the condensate in zero-range processes
C. Godreche, J. M. Luck
For stochastic processes leading to condensation, the condensate, once it is formed, performs an ergodic stationary-state motion over the system. We analyse this motion, and especi…
Free volume distributions inside a bidimensional granular medium
F. da Cruz, F. Lechenault, O. Dauchot +1
We investigate experimentally within a two-dimensional cell the distribution of the free volume associated either to single grains or to clusters of grains. Our main result is that…