Autor: Ueta, Y. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of Ballistic Transport in Wires of n-PbTe
Autorzy:: Grabecki, G.
Wróbel, J.
Dietl, T.
Papis, E.
Kamińska, E.
Piotrowska, A.
Ueta, Y.
Sprinholtz, G.
Bauer, G.
Powiązania:: https://bibliotekanauki.pl/articles/1968110.pdf
Data publikacji:: 1997-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.61.-r
73.23.Ad
73.50.Dn
Opis:: We present results of magnetotransport studies on quantum wires of submicron PbTe epilayers, fabricated by means of electron beam lithography and dry etching. When the wire width is reduced down to 1 μm, the transition from diffusive to ballistic regime is observed. Effects associated with collimation and boundary scattering are found in the Hall, longitudinal, and van der Pauw magnetoresistance for wires and junctions in the shape of a cross.
Źródło:: Acta Physica Polonica A; 1997, 92, 4; 789-792
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Conductance Anomalies in Strained Quantum Wires: the Case of PbSe and PbTe
Autorzy:: Grabecki, G.
Wróbel, J.
Dietl, T.
Sawicki, M.
Skośkiewicz, T.
Papis, E.
Kamińska, E.
Piotrowska, A.
Frank, N.
Ueta, Y.
Sprinholtz, G.
Bauer, G.
Powiązania:: https://bibliotekanauki.pl/articles/1950800.pdf
Data publikacji:: 1996-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Jv
Opis:: We show that conducting edge channels are formed in free standing wires of PbSe/BaF$\text{}_{2}$ and PbTe/BaF$\text{}_{2}$ as temperature is lowered. The effect results from spatially inhomogeneous strain caused by a difference between the thermal expansion coefficients of the epilayer and the substrate. The presence of the edge channels can explain anomalous mesoscopic effects observed previously in these wires.
Źródło:: Acta Physica Polonica A; 1996, 90, 4; 797-800
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Spin-Orbit Coupling in n-Type PbTe/PbEuTe Quantum Wells
Autorzy:: Peres, M. L.
Chitta, V. A.
Maude, D. K.
Oliveira, N. F.
Rappl, P. H. O.
Ueta, A. Y.
Abramof, E.
Powiązania:: https://bibliotekanauki.pl/articles/2047927.pdf
Data publikacji:: 2011-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.10.-d
72.25.Rb
73.20.Fz
73.63.Hs
Opis:: Magnetoresistance measurements were performed on an n-type PbTe/PbEuTe quantum well and weak antilocalization effects were observed. This indicates the presence of spin-orbit coupling phenomena and we showed that the Rashba effect is the main mechanism responsible for this spin-orbit coupling. Using the model developed by Iordanskii et al., we fitted the experimental curves and obtained the inelastic and spin-orbit scattering times. Thus we could compare the zero field energy spin-splitting predicted by the Rashba theory with the energy spin-splitting obtained from the analysis of the experimental curves. The final result confirms the theoretical prediction of strong Rashba effect on IV-VI based quantum wells.
Źródło:: Acta Physica Polonica A; 2011, 119, 5; 602-605
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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