Abstract
is the Landau index number, in the tilted magneticfield.At high filling factors, the Shubnikov-de Haas oscillations exhibit beating effects at certain tilt angles. Weattribute such behavior to oscillations of the tunneling gap due to Aharonov-Bohm interference effect betweencyclotron orbits in different layers. The interplay between quantum and quasiclassical regimes is established.DOI: 10.1103/PhysRevB.78.155320 PACS number s : 73.50.Rb, 73.40.Lq
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