Does theory of quantum correction to conductivity agree with experimental data in 2D systems?
/ Authors
/ Abstract
The quantum corrections to the conductivity have been studied in the two types of 2D heterostructures: with doped quantum well and doped barriers. The consistent analysis shows that in the structures where electrons occupy the states in quantum well only, all the temperature and magnetic field dependences of the components of resistivity tensor are well described by the theories of quantum corrections. Contribution of the electron-electron interaction to the conductivity has been determined reliably for the structures with different electron density. A possible reason of large scatter in experimental data relating to the contribution of electron-electron interaction, obtained in previous papers, and the role of the carriers, occupied the states of the doped layers, is discussed.