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Your search keyword '"P. Butaud"' showing total 7 results
Start Over Author "P. Butaud" Journal physical review letters
7 results on '"P. Butaud"'

1. Measurement of the sliding charge-density-wave phase velocity inRb0.3MoO3

Author

A. Janossy, P. Butaud, Claude Berthier, and P. Ségransan

Subjects
chemistry.chemical_classification, Background noise, Drift velocity, Materials science, Condensed matter physics, chemistry, General Physics and Astronomy, Group velocity, Phase velocity, Local field, Current density, Inorganic compound, Charge density wave
Published
1987
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2. NMR Evidence of the Fröhlich Mode inRb0.30MoO3

Author

A. Janossy, Claude Berthier, P. Ségransan, P. Butaud, and Jacques Marcus

Subjects
chemistry.chemical_classification, Physics, Condensed matter physics, General Physics and Astronomy, Thermal conduction, Crystal, chemistry, Modulation, Condensed Matter::Superconductivity, Phase correlation, Inorganic compound, Charge density wave, Electric field gradient, Voltage
Abstract

Current-voltage characteristics, voltage oscillations and NMR on the same Rb0.30MoO3 crystal at 77 K are presented. The 1/2,-1/2; transition at V0=80 MHz of 87Rb nuclei broadened by the CDW modulation is motionally narrowed for bias currents exceeding threshold for non-linear conduction. Calculation of the lineshapes, assuming a partial depinning of the sample, leads to excellent agreement with experiment. An estimate of the ratio of the average current density and voltage oscillation frequency in the depinned region agrees roughly with phenomenological models. A CDW phase correlation time of single domains is deduced to be τ=200 μS.

Published
1986
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4. Interaction induced delocalization for two particles in a periodic potential

Author

Vidal J, Doucot B, Mosseri R, and Butaud P

Abstract

We consider two interacting particles evolving in a one-dimensional periodic structure embedded in a magnetic field. We show that the strong localization induced by the magnetic field for particular values of the flux per unit cell is destroyed as soon as the particles interact. We study the spectral and dynamical aspects of this transition.

Published
2000
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