AC-magnetotransport of a 2DEG in the quantum Hall regime
Journal Article
·
· AIP Conference Proceedings
- Departamento de Física, Universidad de los Andes, A.A. 4976, Bogotá D.C. (Colombia)
- Laboratoire Charles Coulomb L2C, Université Montpellier II, Pl. E: Bataillon, 34095 Montpellier Cedex 5 (France)
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.
- OSTI ID:
- 22280307
- Journal Information:
- AIP Conference Proceedings, Vol. 1598, Issue 1; Conference: LDSD 2011: 7. international conference on low dimensional structures and devices, Telchac (Mexico), 22-27 May 2011; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Admittance of multiterminal quantum Hall conductors at kilohertz frequencies
GaN/AlGaN 2DEGs in the quantum regime: Magneto-transport and photoluminescence to 60 tesla
DC and AC quantum Hall measurements
Journal Article
·
Fri Mar 28 00:00:00 EDT 2014
· Journal of Applied Physics
·
OSTI ID:22280307
GaN/AlGaN 2DEGs in the quantum regime: Magneto-transport and photoluminescence to 60 tesla
Journal Article
·
Mon Dec 28 00:00:00 EST 2020
· Applied Physics Letters
·
OSTI ID:22280307
+9 more
DC and AC quantum Hall measurements
Conference
·
Sat Dec 31 00:00:00 EST 1994
·
OSTI ID:22280307