223 citations · 362 across the 8 of their papers we have counts for
8 papers
What is the temperature of a granular medium?
A. Baldassarri, A. Barrat, G. D'Anna +3
In this paper we discuss whether thermodynamical concepts and in particular the notion of temperature could be relevant for the dynamics of granular systems. We briefly review how…
Observing Brownian motion in vibration-fluidized granular matter
G. D'Anna, P. Mayor, A. Barrat +2
At the beginning of last century, Gerlach and Lehrer observed the rotational Brownian motion of a very fine wire immersed in an equilibrium environment, a gas. This simple experime…
Extreme events driven glassy behaviour in granular media
G. D'Anna, P. Mayor, G. Gremaud +2
Motivated by recent experiments on the approach to jamming of a weakly forced granular medium using an immersed torsion oscillator [Nature 413 (2001) 407], we propose a simple mode…
Critical Dynamics of Burst Instabilities in the Portevin-Le Chatelier Effect
Gianfranco D'Anna, Franco Nori
We investigate the Portevin-Le Chatelier effect (PLC), by compressing Al-Mg alloys in a very large deformation range, and interpret the results from the viewpoint of phase transiti…
Vibration-induced "thermally activated" jamming transition in granular media
G. D'Anna, G. Gremaud
The quasi-static frequency response of a granular medium is measured by a forced torsion oscillator method, with forcing frequency in the range Hz to 5 Hz, while…
Scaling of the Hall Resistivity in the Solid and Liquid Vortex Phases in Twinned Single Crystal YBCO
G. D'Anna, V. Berseth, L. Forro +2
Longitudinal and Hall voltages are measured in a clean twinned YBCO single crystal in the liquid and solid vortex phases. For magnetic fields tilted away from the c-axis more than…