Coulomb interactions and effective quantum inertia of charge carriers in a macroscopic conductor

Autor: Pascal Degiovanni, Antonella Cavanna, B. Chenaud, Ulf Gennser, Adrien Delgard, Dominique Mailly, Christophe Chaubet

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2021, 104 (12), ⟨10.1103/PhysRevB.104.L121301⟩
Physical Review B, American Physical Society, 2021, 104, ⟨10.1103/physrevb.104.l121301⟩

We study the low frequency admittance of a quantum Hall bar of size much larger than the electronic coherence length. We find that this macroscopic conductor behaves as an ideal quantum conductor with vanishing longitudinal resistance and purely indu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea7e2e6b0095e23101046f1835e4458a
https://doi.org/10.1103/physrevb.104.l121301

Magnetic-TEGFET: Transistor Without a Gate

Autor: W. Zawadzki, Jean Christophe Harmand, Christophe Chaubet, Andre Raymond, Boris Chenaud, Antonella Cavanna, Adrien Delgard

Publikováno v: physica status solidi (b)
physica status solidi (b), Wiley, 2019, pp.1800509. ⟨10.1002/pssb.201800509⟩

International audience; Low‐temperature current–voltage characteristics of n‐type GaAs/GaAlAs quantum wells delta‐doped in GaAs channel with Be acceptors are studied in the presence of a magnetic field. Negatively charged acceptor ions locali

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15c9dbd1c86a2044ff9c22437bf1c740
https://hal.archives-ouvertes.fr/hal-02137158

Admittance measurements in the quantum Hall effect regime

Autor: Carlos Hernández, Christophe Consejo, Christophe Chaubet

Publikováno v: Physica B: Condensed Matter. 453:154-157

In this work we present an admittance study of a two-dimensional electron gas (2DEG) in the quantum Hall effect (QHE) regime. We have studied several Hall bars in different contacts configurations in the frequency range 100 Hz–1 MHz. Our interpreta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2929850ccf4fcea775e8e3d1680121b3
https://doi.org/10.1016/j.physb.2014.03.091

Conduction electrons localized by charged magnetoacceptorsA2−in GaAs/GaAlAs quantum wells

Autor: M. Kubisa, Isabelle Bisotto, W. Zawadzki, Andre Raymond, Christophe Chaubet, Krzysztof Ryczko

Publikováno v: Physical Review B. 92

A variational theory is presented of ${A}^{1\ensuremath{-}}$ and ${A}^{2\ensuremath{-}}$ centers, i.e., of a negative acceptor ion localizing one and two conduction electrons, respectively, in a GaAs/GaAlAs quantum well in the presence of a magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad3e17b5632cc217e3ea7dfddebc157c
https://doi.org/10.1103/physrevb.92.035409

Effect of disorder on the density of states of a two-dimensional electron gas under magnetic field

Autor: Benoit Jouault, Ym Meziani, S. Bonifacie, Christophe Chaubet, Andre Raymond

Publikováno v: PHYSICA B-CONDENSED MATTER
PHYSICA B-CONDENSED MATTER, 2004, 346, pp.455-459. ⟨10.1016/j.physb.2004.01.126⟩
HAL
7th International Symposium on Research in High Magnetic Fields
7th International Symposium on Research in High Magnetic Fields, Jul 2003, Toulouse (FRANCE), France. pp.455-459

7th International Symposium on Research in High Magnetic Fields, Inst Natl Sci Appl, Toulouse, FRANCE, JUL 20-23, 2003; We have calculated the density of states (DOS) of a two-dimensional electron gas in a perpendicular magnetic field, using a multip

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1075f8f3280e1fc460537e0c9e7c5964
https://doi.org/10.1016/j.physb.2004.01.126