Abstract
The deposition of ferromagnetic microstructures on top of a high-mobility two-dimensional electron gas (2DEG) allows the investigation of electron transport in a periodic magnetic field which alternates on a length scale small compared to the elastic mean free path of the electrons. The longitudinal resistance of the 2DEG displays, as a function of the externally applied field, the long-predicted magnetic commensurability oscillations which result from the interplay between the two characteristic length scales of the system, the classical cyclotron radius of the electrons and the period of the magnetic field modulation.
- Received 2 December 1994
DOI:https://doi.org/10.1103/PhysRevLett.74.3013
©1995 American Physical Society