Publications

Zener Tunneling Between Landau Orbits in a High-Mobility Two-Dimensional Electron Gas

Yang, C.L.; Zhang, J.; Du, R.R.; Simmons, J.A.; Reno, J.L.

Magnetotransport in a laterally confined two-dimensional electron gas (2DEG) can exhibit modified scattering channels owing to a tilted Hall potential. Transitions of electrons between Landau levels with shifted guiding centers can be accomplished through a Zener tunneling mechanism, and make a significant contribution to the magnetoresistance. A remarkable oscillation effect in weak field magnetoresistance has been observed in high-mobility 2DEGs in [Formula presented] heterostructures, and can be well explained by the Zener mechanism. © 2002 The American Physical Society.