Interface-driven magnetoelectric effects in granular CrO 2

Magnetoelectric coupling at the EuO/BaTiO3 interface

Granular transport in driven granular gas.

We numerically and theoretically investigate the behavior of a granular gas driven by asymmetric plates. The injection of energy in the dissipative system differs from one side to the opposite one. We prove that the dynamical clustering which is expected for such a system is affected by the asymmetry. As a consequence, the cluster position can be fully controlled. This property could lead to va...

Oscillons in Driven Granular Systems

In a vertically-oscillated shallow layer of beads, long-lived localized structures called ’oscillons’ have been observed. These structures oscillate at half of the driving frequency, and may be either in phase or directly out of phase with the driving force at the peak of a cycle. Oscillons interact with eachother and have been observed form linear polymer-like structures and also 2D lattices. ...

M ar 2 00 1 Driven granular gases with gravity

We study fluidized granular gases in a stationary state determined by the balance between an external driving and the bulk dissipation. The two considered situations are inspired by recent experiments, where the gravity plays a major role as a driving mechanism: in the first case gravity acts only in one direction and the bottom wall is vibrated, in the second case gravity acts in both directio...

Dynamical magnetoelectric effects in multiferroic oxides.

Multiferroics with coexistent ferroelectric and magnetic orders can provide an interesting laboratory to test unprecedented magnetoelectric (ME) responses and their possible applications. One such example is the dynamical and/or resonant coupling between magnetic and electric dipoles in a solid. As examples of such dynamical ME effects, (i) the multiferroic domain wall dynamics and (ii) the ele...