Piot, B. A., Maude, D. K., Gennser, U., Cavanna, A., Mailly, D.
The magnetoresistance of a low carrier density, disordered GaAs based two-dimensional (2D) electron gas has been measured in parallel magnetic fields up to 32 T. The feature in the resistance...
Non-Equilibrium Edge Channel Spectroscopy in the Integer Quantum Hall Regime (2009)
Altimiras, C., Sueur, H. Le, Gennser, U., Cavanna, A., Mailly, D., Pierre, F.
Heat transport has large potentialities to unveil new physics in mesoscopic systems. A striking illustration is the integer quantum Hall regime, where the robustness of Hall currents limits...
Tuning decoherence with a voltage probe (2009)
Roulleau, P., Portier, F., Roche, P., Cavanna, A., Faini, G., Gennser, U., ...
We present an experiment where we tune the decoherence in a quantum interferometer using one of the simplest object available in the physic of quantum conductors : an ohmic contact. For that purpose,...
Magnetic field anti-symmetry of photovoltaic voltage in evanescent microwave fields (2008)
Chepelianskii, A., Guéron, S., Pierre, F., Cavanna, A., Etienne, B., Bouchiat, H.
A two dimensional electron system without spatial inversion symmetry develops a sample specific dc voltage when exposed to a microwave radiation at low temperature. We investigate this photovoltaic...
Subnanosecond single electron source in the time-domain (2008)
Mahé, Adrien, Parmentier, François, Fève, Gwendal, Berroir, Jean-Marc, Kontos, Takis, Cavanna, A., ...
We describe here the realization of a single electron source similar to single photon sources in optics. On-demand single electron injection is obtained using a quantum dot connected to the conductor...
Magnetoresistance of antidot lattices with grain boundaries (2008)
Klinkhammer, S., Xu, Hengyi, Heinzel, T., Gennser, U., Faini, G., Ulysse, C., ...
The magnetotransport properties of antidot lattices containing artificially designed grain boundaries have been measured. We find that the grain boundaries broaden the commensurability resonances and...
Noise dephasing in the edge states of the Integer Quantum Hall regime (2008)
Roulleau, P., Portier, F., Roche, P., Cavanna, A., Faini, G., Gennser, U., ...
An electronic Mach Zehnder interferometer is used in the integer quantum hall regime at filling factor 2, to study the dephasing of the interferences. This is found to be induced by the electrical...
Subnanosecond single electron source in the time-domain (2008)
Mahé, Adrien, Parmentier, François, Fève, Gwendal, Berroir, Jean-Marc, Kontos, Takis, Cavanna, A., ...
We describe here the realization of a single electron source similar to single photon sources in optics. On-demand single electron injection is obtained using a quantum dot connected to the conductor...
Subnanosecond single electron source in the time-domain (2008)
Mahé, Adrien, Parmentier, François, Fève, Gwendal, Berroir, Jean-Marc, Kontos, Takis, Cavanna, A., ...
We describe here the realization of a single electron source similar to single photon sources in optics. On-demand single electron injection is obtained using a quantum dot connected to the conductor...
Experimental Test of the Dynamical Coulomb Blockade Theory for Short Coherent Conductors (2007)
Altimiras, C., Gennser, U., Cavanna, A., Mailly, D., Pierre, F.
We observed the recently predicted quantum suppression of dynamical Coulomb blockade on short coherent conductors by measuring the conductance of a quantum point contact embedded in a tunable on-chip...
Direct measurement of the coherence length of edge states in the Integer Quantum Hall Regime (2007)
Roulleau, P., Portier, F., Roche, P., Cavanna, A., Faini, G., Gennser, U., ...
We have determined the finite temperature coherence length of edge states in the Integer Quantum Hall Effect (IQHE) regime. This was realized by measuring the visibility of electronic Mach-Zehnder...
An On-Demand Coherent Single Electron Source (2007)
Fève, Gwendal, Mahé, Adrien, Berroir, Jean-Marc, Kontos, Takis, Plaçais, Bernard, Glattli, Christian, ...
We report on the electron analog of the single photon gun. On demand single electron injection in a quantum conductor was obtained using a quantum dot connected to the conductor via a tunnel barrier....
Piot, B. A., Maude, D. K., Henini, M., Wasilewski, Z. R., Gupta, J. A., Friedland, K. J., ...
In a recent paper [B. A. Piot et al., Phys. Rev. B 72, 245325 (2005)], we have shown that the lifting of the electron spin degeneracy in the integer quantum Hall effect at high filling factors should...
Finite bias visibility of the electronic Mach-Zehnder interferometer (2007)
Roulleau, Preden, Portier, F., Glattli, D. C., Roche, P., Cavanna, A., Gaini, G., ...
We present an original statistical method to measure the visibility of interferences in an electronic Mach-Zehnder interferometer in the presence of low frequency fluctuations. The visibility...
An On-Demand Coherent Single Electron Source (2007)
Fève, Gwendal, Mahé, Adrien, Berroir, Jean-Marc, Kontos, Takis, Plaçais, Bernard, Glattli, Christian, ...
We report on the electron analog of the single photon gun. On demand single electron injection in a quantum conductor was obtained using a quantum dot connected to the conductor via a tunnel barrier....
An On-Demand Coherent Single Electron Source (2007)
Fève, Gwendal, Mahé, Adrien, Berroir, Jean-Marc, Kontos, Takis, Plaçais, Bernard, Glattli, Christian, ...
We report on the electron analog of the single photon gun. On demand single electron injection in a quantum conductor was obtained using a quantum dot connected to the conductor via a tunnel barrier....
Violation of Kirchhoff's Laws for a Coherent RC Circuit (2006)
Gabelli, Julien, Fève, Gwendal, Berroir, Jean-Marc, Plaçais, Bernard, Cavanna, A., Etienne, Bernard, ...
What is the complex impedance of a fully coherent quantum resistance-capacitance (RC) circuit at GHz frequencies in which a resistor and a capacitor are connected in series? While Kirchhoff's laws...
Violation of Kirchhoff's Laws for a Coherent RC Circuit (2006)
Gabelli, Julien, Fève, Gwendal, Berroir, Jean-Marc, Plaçais, Bernard, Cavanna, A., Etienne, Bernard, ...
What is the complex impedance of a fully coherent quantum resistance-capacitance (RC) circuit at GHz frequencies in which a resistor and a capacitor are connected in series? While Kirchhoff's laws...
Magnetic field asymmetry of mesocopic dc rectification in Aharonov Bohm rings (2006)
Angers, L., Zakka-Bajjani, E., Deblock, R., Gueron, S., Cavanna, A., Gennser, U., ...
Fundamental Casimir-Onsager symmetry rules for linear response do not apply to non linear transport. This motivates the investigation of nonlinear dc conductance of mesoscopic GaAs/GaAlAs rings in a...
Violation of Kirchhoff's Laws for a Coherent RC Circuit (2006)
Gabelli, Julien, Fève, Gwendal, Berroir, Jean-Marc, Plaçais, Bernard, Cavanna, A., Etienne, Bernard, ...
What is the complex impedance of a fully coherent quantum resistance-capacitance (RC) circuit at GHz frequencies in which a resistor and a capacitor are connected in series? While Kirchhoff's laws...
Jouault, B., Gryglas, M., Faini, G., Gennser, U., Cavanna, A., Baj, M., ...
A single impurity is used to probe the local density of states of a two-dimensional electron gas (2DEG) in a resonant tunneling experiment. The studies have been performed in the GaAs/AlAs/GaAs...
Spectroscopy of a single Si donor by the resonant tunnelling experiment (2006)
Baj, M., Gryglas, M., Jouault, B., Maude, D., Faini, G., Gennser, U., ...
Resonant tunnelling via single impurities placed in a single barrier was experimentally studied. The typically observed structures in the current-voltage characteristics seem to be paired. Such a...
Violation of Kirchhoff's Laws for a Coherent RC Circuit (2006)
Gabelli, Julien, Fève, Gwendal, Berroir, Jean-Marc, Plaçais, Bernard, Cavanna, A., Etienne, Bernard, ...
What is the complex impedance of a fully coherent quantum resistance-capacitance (RC) circuit at GHz frequencies in which a resistor and a capacitor are connected in series? While Kirchhoff's laws...
Commensurability Effects in Hexagonal Antidot Lattices with Large Antidot Diameters (2005)
Meckler, S., Heinzel, T., Cavanna, A., Faini, G., Gennser, U., Mailly, D.
The observation of a novel type of commensurability resonance in two-dimensional, hexagonal antidot lattices is reported. These resonances have a classical character and occur at magnetic fields...
Acoustic Phonon-Assisted Resonant Tunneling via Single Impurities (2004)
Gryglas, M., Baj, M., Chenaud, B., Jouault, B., Faini, G., Cavanna, A.
We perform the investigations of the resonant tunneling via impurities embedded in the AlAs barrier of a single GaAs/AlGaAs heterostructure. In the $I(V)$ characteristics measured at 30mK, the...
Magnetization of an imcompressible two-dimensional electron gas. (1998)
Wiegers, S. A. J., Specht, M., Bibow, E. D., Lévy, L. P., Melinte, S., Grivei, E., ...