L. Smrcka et al., IN-PLANE TILTED MAGNETIC-FIELD-DEPENDENT CONDUCTANCE OF 2D ELECTRON-SYSTEMS IN ASYMMETRIC DOUBLE-QUANTUM WELLS/, Acta Physica Polonica. A, 92(5), 1997, pp. 981-984
The resistance in an asymmetric double-well structure was measured as
a function of magnetic fields oriented almost parallel to the plane of
the electron layer. It was shown that the shape of the magnetoresista
nce curves is close to the in-plane magnetic-field-dependent density o
f states which we obtained by self-consistent numerical calculation. T
he novel feature is the negative magnetoresistance observed at low mag
netic fields.