Temat: H63 - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Size Effects on the Electrical Resistivity of the Ultra-Thin Metallic Film
Autorzy:: Paja, A.
Działo, A.
Powiązania:: https://bibliotekanauki.pl/articles/1198662.pdf
Data publikacji:: 2014-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.50.-h
73.50.Bk
73.63.-b
73.63.Hs
Opis:: In this article we investigate the electron-phonon interaction in metals in the system strongly reduced in one dimension. The Fermi sphere which represents the free-electron structure of a bulk metal was replaced by a discrete set of the Fermi disks. Using the variational expression for resistivity the temperature and film thickness dependences of the resistivity were derived and compared with experimental data.
Źródło:: Acta Physica Polonica A; 2014, 125, 5; 1220-1223
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Electrical Resistivity of the Monoatomic Metallic Layer
Autorzy:: Paja, A.
Działo, A.
Powiązania:: https://bibliotekanauki.pl/articles/1400157.pdf
Data publikacji:: 2013-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.50.-h
73.50.Bk
73.63.-b
73.63.Hs
Opis:: We present new formula which describes the change of electrical resistivity of a monoatomic metallic layer with temperature. The results are compared with those given by the Bloch-Grüneisen formula for bulk metals. Our calculated values compared with those for bulk materials are significantly higher at low temperatures (T<0.1θ) and apparently lower at the remaining range of temperatures. Both effects can be explained by the low dimensionality of the sample.
Źródło:: Acta Physica Polonica A; 2013, 123, 4; 770-772
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Electron Transport and Spin Scattering in Very Thin Disordered Metallic Films
Autorzy:: Paja, A.
Spisak, B.
Powiązania:: https://bibliotekanauki.pl/articles/1814037.pdf
Data publikacji:: 2007-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.15.Cz
72.25.Ba
73.50.-h
73.63.-b
Opis:: We consider the electron transport through a very thin disordered metallic film doped with magnetic impurities. We treat the film as a quasi-two-Łinebreak -dimensional system with structural disorder where some ions have spins and other are spinless. The interaction of conduction electrons with localized spins is described by means of the exchange term of the Hamiltonian. The scattering is treated in the first Born approximation and the potential is assumed to be the Coulomb screened one. The total effective cross-section is calculated as a sum of the part responsible for the potential scattering and the second part which comes from the spin-spin scattering. The Fermi sphere splits into separate sheets due to the finite size of the system in the z direction, therefore, the cross-section and the relaxation time are calculated for each sheet independently. The total transport relaxation time and the conductivity are obtained as functions of the thickness of the system and the contents of magnetic impurities. Some model calculations have been made for a thin disordered film of copper doped with manganese.
Źródło:: Acta Physica Polonica A; 2007, 112, 6; 1289-1295
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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