Oscillations in the transverse magnetoresistance of a point contact
Levinson I. B. , Sukhorukov E. V. , Khaetskii A. V.
The transverse magnetoresistance of a ballistic point contact is calculated in the model of a "hole in a screen." Classical oscillations of the magnetoresistance are predicted as a function of the magnetic field. These oscillations stem from a geometric resonance between the size of the hole and the Larmor radius.