91 citations · 161 across the 7 of their papers we have counts for
7 papers
Controlled generation and detection of a thermal bias in Corbino devices under the quantum Hall regime
Mariano A. Real, Alejandra Tonina, Liliana Arrachea +4
We present an experimental technique to generate and measure a temperature bias in the quantum Hall effect of GaAs/AlGaAs Corbino samples. The bias is generated by injecting an ele…
Thermoelectricity in Quantum-Hall Corbino Structures
Mariano Real, Daniel Gresta, Christian Reichl +6
We measure the thermoelectric response of Corbino structures in the quantum Hall effect regime and compare it with a theoretical analysis. The measured thermoelectric voltages are…
Ballistic transport in graphene antidot lattices
Andreas Sandner, Tobias Preis, Christian Schell +5
Graphene samples can have a very high carrier mobility if influences from the substrate and the environment are minimized. Embedding a graphene sheet into a heterostructure with he…
Fractional Quantum Hall Effect in a Diluted Magnetic Semiconductor
C. Betthausen, P. Giudici, A. Iankilevitch +9
We report the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconduct…
Intrinsic gap and exciton condensation in the nu_T=1 bilayer system
P. Giudici, K. Muraki, N. Kumada +1
We investigate the quasiparticle excitation of the bilayer quantum Hall (QH) system at total filling factor in the limit of negligible interlayer tunneling und…
Evidence of breakdown of the spin symmetry in diluted 2D electron gases
P. Giudici, A. R. Goñi, P. G. Bolcatto +4
Recent claims of an experimental demonstration of spontaneous spin polarisation in dilute electron gases \cite{young99} revived long standing theoretical discussions \cite{ceper99,…
Evidence of spontaneous spin polarization in the two-dimensional electron gas
A. R. Goñi, P. Giudici, F. A. Reboredo +4
Density-functional calculations using an exact exchange potential for a two-dimensional electron gas (2DEG) formed in a GaAs single quantum well predict the existence of a spin-pol…