Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session J2: Non-equilibrium Phenomena in Very High Landau Levels
11:15 AM–2:15 PM,
Tuesday, March 16, 2010
Room: Oregon Ballroom 202
Sponsoring Unit: DCMP
Chair: Myriam Sarachik, City College of New York, CUNY
Abstract ID: BAPS.2010.MAR.J2.1
Abstract: J2.00001 : Magneto-resistance oscillations in very high Landau levels of two-dimensional electron systems*
11:15 AM–11:51 AM
Preview Abstract Abstract
(University of Minnesota)
When a two-dimensional electron system (2DES), most famous for quantum Hall effects, is subject to a weak perpendicular magnetic field and low temperature, the resistivity exhibits well-known Shubnikov-de Haas oscillations. If a high-mobility 2DES is further exposed to microwave radiation, dc electric field or elevated temperatures, other classes of magneto-oscillations emerge. These oscillations are known as microwave-, Hall field- and phonon-induced resistance oscillations, respectively. Under certain conditions oscillation minima can extend all the way to zero producing zero-resistance and zero-differential resistance states. This talk will discuss recent experimental developments focusing on the effects of strong dc electric fields and electron-electron interactions responsible for the temperature dependence of magneto-oscillations in a high-mobility 2DES.
*This work is supported by NSF DMR-0548014 and DOE DE-SC0002567.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.J2.1
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