Autor: Maude, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On Subband Mobilities Observed in δ-doped AlGaAs/GaAs Quantum Wells and GaAs Layers
Autorzy:: Dobaczewski, L.
Maude, D. K.
Missous, M.
Portal, J. C.
Powiązania:: https://bibliotekanauki.pl/articles/1931958.pdf
Data publikacji:: 1995-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.25.Hc
71.55.Eq
73.20.Dx
Opis:: Electronic transport phenomena in molecular beam epitaxy grown silicon δ-doped AlGaAs/GaAs quantum wells and GaAs layers were investigated. Observations of the Shubnikov-de Haas oscillations allowed to deduce the redistribution of electrons among energy subbands formed by V-shaped and rectangular wells for GaAs layers and the AlGaAs/GaAs quantum wells, respectively. In both cases the effects of illumination upon individual sub-band mobilities and carrier concentrations were studied and the manifestation of the DX centres was demonstrated.
Źródło:: Acta Physica Polonica A; 1995, 87, 1; 201-204
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Coherent and Sequential Tunneling in High Magnetic Field
Autorzy:: Belyaev, A. E.
Vitusevich, S. A.
Maude, D.
Portal, J. C.
Powiązania:: https://bibliotekanauki.pl/articles/1968012.pdf
Data publikacji:: 1997-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.40.Gk
85.30.Mn
Opis:: In the resonant tunneling diode incorporating a wide one-sided spacer layer, an oscillation picture has been studied in both polarities of the applied voltage in high magnetic field. The results lead to the conclusion that the interference between the electron waves running in the forward direction and the ones reflected at some potential step can occur in both the emitter and collector regions. The characteristic lengths corresponding to the path of the ballistic motion of electrons were estimated. An exchange enhancement of the electronic g-factor in two-dimensional systems was observed.
Źródło:: Acta Physica Polonica A; 1997, 92, 4; 704-708
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Magnetization Steps in Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te Observed in Coherent Transport
Autorzy:: Jaroszyński, J.
Dietl, T.
Wróbel, J.
Karczewski, G.
Wojtowicz, T.
Kossut, J.
Maude, D. K.
van der Linden, P.
Portal, J. C.
Powiązania:: https://bibliotekanauki.pl/articles/1968114.pdf
Data publikacji:: 1997-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.15.Rn
73.61.Ga
73.20.Fz
Opis:: Magnetoconductance measurements on submicron wires of n$\text{}^{+}$-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te were carried out up to 27 T and down to 100 mK. The inverse correlation field of the universal conductance fluctuations is found to increase abruptly in the vicinity of the magnetization steps due to Mn pairs in CdMnTe. No such effect is observed in similar wires of CdTe. These findings support a recent model, according to which the correlation field of the universal conductance fluctuations in magnetic systems is inversely proportional to the magnetic susceptibility of the localized spins.
Źródło:: Acta Physica Polonica A; 1997, 92, 4; 797-800
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Breakdown of the Quantum Hall Effect
Autorzy:: Maude, D. K.
Rigal, L. B.
Desrat, W.
Potemski, M.
Portal, J. C.
Eaves, L.
Wasilewski, Z. R.
Toropov, A. I.
Hill, G.
Powiązania:: https://bibliotekanauki.pl/articles/2027467.pdf
Data publikacji:: 2001-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.10.Pm
74.25.Dw
Opis:: The breakdown of the dissipationless conductance in the integer and fractional quantum Hall effect regime is reviewed. The temperature dependence of the critical current and of the critical magnetic field at breakdown bears a striking resemblance to the phase diagram of the phenomenological two-fluid Gorter-Casimir model for superconductivity. In addition, a remarkably simple scaling law exists between different filling factors.
Źródło:: Acta Physica Polonica A; 2001, 100, 2; 213-226
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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