Temperature dependence of the equilibrium Hall concentration in silicon planar-doped GaAs samples

Correa, Juliano; Oliverira, A.G. de; Silva, M.I.N. da; Moreira, M. V. B.; Chacham, H.

doi:10.1016/0038-1098(96)00146-9

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…In both systems several subbands can be occupied easily with a substantial portion of the electron population in the higher subbands. Much effort of researchers has been concentrated on transport properties of DDLs [8][9][10][11][12][13][14][15][16], and recently the PQWs have been receiving growing attention as well [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Classical magnetotransport in a parabolic quantum well with a strong intersubband scattering

Studenikin

Chaplik

Panaev

et al. 1999

Semicond. Sci. Technol.

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Classical magnetotransport coefficients were studied in a parabolic quantum well (PQW) structure with two subbands occupied which occupancies were determined using the Shubnikov-de Haas effect. Unexpectedly, a very low magnetoresistivity effect was observed in comparison with what was predicted from the classical point of view for a system with two kinds of carriers possessing high mobilities around 10-20 m 2 V −1 s −1 . It was shown that methods, including the mobility spectrum technique, based on multilayer approach were inconsistent to describe the magnetotransport in a PQW system because of a strong intersubband scattering. For analysis of the data, a theoretical approach was developed on the basis of solution of the Boltzmann kinetic equation and corresponding formulae were derived employing clearly understood physical parameters of intra-and intersubband scattering frequencies. Based on this theoretical approach the scattering frequencies were deduced from the experimental data. In the PQW the intersubband scattering was much stronger than the intrasubband scattering and it determined the main features of the magnetotransport coefficients.

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Section: Introductionmentioning

confidence: 99%

“…It has been shown [5,8,15] that in DDLs the magnetotransport phenomena can be consistently described in terms of several independent carrier species on different Present address: Guelph-Waterloo Centre for Graduate Work in Chemistry, University of Guelph, Ontario N1G 2W1, Canada.…”

Section: Introductionmentioning

confidence: 99%