Observation of quantum oscillations of the magnetoresistance of multiply connected objects with a hopping conductivity
Poyarkov Ya. B., Kontarev V. Ya., Krylov I. P., Sharvin Yu. V.
A study has been made of the magnetoresistance of grid structures made from oxidized disordered PbTe films. At Τ — 1.12 К, oscillations have been observed with a period corresponding to a change of approximately hc/2e in the magnetic flux through each aperture of the grid. The temperature dependence of the resistance is described by Mott's law for films with a hopping conductivity and a variable hopping length.