%0 Conference Proceedings
%T AC-magnetotransport of a 2DEG in the quantum Hall regime
%+ Universidad de los Andes [Bogota] (UNIANDES)
%+ Laboratoire Charles Coulomb (L2C)
%A Hernandez, Carlos
%A Consejo, Christophe
%A Chaubet, Christophe
%< avec comité de lecture
%Z L2C:14-175
%( AIP Proceedings
%B 7TH INTERNATIONAL CONFERENCE ON LOW DIMENSIONAL STRUCTURES AND DEVICES: (LDSD 2011)
%C Telchac, Mexico
%V 1598
%P 218
%8 2011-05-22
%D 2011
%R 10.1063/1.4878312
%Z Physics [physics]/Quantum Physics [quant-ph]
%Z Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]Conference papers
%X In this paper we present an ac-magneto-transport study of a two-dimensional electron gas (2DEG) in the quantum Hall effect (QHE) regime, for frequencies in the range [100Hz, 1MHz]. We present a new approach to understand admittance measurements based in the Landauer-Buttiker formalism for QHE edge channels and taking into account the capacitance and the topology of the cables connected to the contacts used in the measurements. Our model predicts an universal behavior with the a-dimensional parameter RCω where R is the 2 wires resistance of the 2DEG, C the capacitance cables and the angular frequency, in agreement with experiments
%G English
%L hal-01071270
%U https://hal.science/hal-01071270
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021