Autor: Wołoszyn, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spin-Dependent Transport through Metallic System with Magnetic Impurities
Autorzy:: Spisak, B.
Wołoszyn, M.
Paja, A.
Powiązania:: https://bibliotekanauki.pl/articles/1810518.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.10.Fk
72.25.Ba
73.63.Nm
Opis:: The problem of spin-dependent transport of electrons through a metallic nanostructure is considered. The system consists of non-magnetic metal wire with two magnetic impurities and is connected to two ferromagnetic leads. The differential conductance is calculated by using the transfer matrix method. The spin polarization of the conductance is also obtained. It was found that this polarization is dependent on the spin configuration of magnetic impurities. This dependence can be controlled by the applied bias voltage.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 266-268
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Phase Space Description of Localization in Disordered One-Dimensional Systems
Autorzy:: Wołoszyn, M.
Spisak, B. J.
Maksymowicz, A. Z.
Powiązania:: https://bibliotekanauki.pl/articles/2047103.pdf
Data publikacji:: 2006-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.21.Hb
73.20.Fz
71.23.An
Opis:: The degree of electronic localization in disordered one-dimensional systems is discussed. The model is simplified to a set of Diracδ-like functions used for the potential in the Schrödinger equation and calculations are carried out for the ground state. The disorder of topological character is introduced by the random shifts of the potential peaks. For comparison, we also discuss two aperiodic systems of the potential peaks: Thue-Morse and Fibonacci sequences. The localization, both in the momentum and the real space, is analyzed for different disorder strengths and sizes of the system. We calculate the localization length, and additionally we express the localization effects in terms of the inverse participation function and also by means of the Husimi quasi-classical distribution function in the phase space of the electron (position, momentum) coordinate system. We present the influence of disorder generated by the random and aperiodic sequences of potential on the energy spectrum.
Źródło:: Acta Physica Polonica A; 2006, 110, 4; 523-535
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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