Does theory of quantum correction to conductivity agree with experimental data in 2D systems?

Details Does theory of quantum correction to conductivity agree with experimental data in 2D systems? Does theory of quantum correction to conductivity agree with experimental data in 2D systems?

2001-04-17

arxiv.org/abs/cond-mat/0104299v2

Phys. Rev. B 64, 235327 (2001)

Physics

Condensed Matter

Disordered Systems and Neural Networks

10 pages with 9 figures

Scientific paper

10.1103/PhysRevB.64.235327

The quantum correction to the conductivity have been studied in 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 dependencies of the components of resistivity tensor are well described by the theories of quantum corrections. The contribution of electron-electron interaction to the conductivity have been determined reliably in the structures with different electron density. A possible reason of large scatter in experimental data concerning 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.

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