Wszystkie pola: metal-insulator - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Quantum Model for Metal-Insulator Transition in Amorphous Gd_{x}Si_{1-x}
Autorzy:: Paja, A.
Ornat, M.
Powiązania:: https://bibliotekanauki.pl/articles/1399304.pdf
Data publikacji:: 2013-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.15.Cz
72.15.Lh
72.15.Rn
Opis:: The model for experimentally observed metal-insulator transition induced by magnetic field in amorphous $Gd_{x}Si_{1 - x}$ is presented. The method of calculation is based on the previously created model for amorphous alloys now developed to include magnetic field effects. The model is based on the quantum "2 $k_{F}$" scattering model theory where the pseudopotentials are replaced by the scattering matrix operators and the Fermi energy is properly determined by the accurate values of the phase shifts. The results agree very well with experimental data.
Źródło:: Acta Physica Polonica A; 2013, 124, 4; 717-719
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Investigation of Quantum Effects in Carbonaceous Materials Near the Metal-Insulator Transition by Means of THz Photoconductivity
Autorzy:: Dorosinets, V.
Ksenevich, V.
Seliuta, D.
Martūnas, Z.
Valušis, G.
Powiązania:: https://bibliotekanauki.pl/articles/1813203.pdf
Data publikacji:: 2008-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.30.+h
72.15.Rn
Opis:: A series of carbonaceous fibers with conductivity tuned to the metal-insulator transition were prepared by heat treatment of chemically modified polymer precursors. Peculiar behaviour of the resistivity versus temperature dependence R(T) at low temperatures suggests quantum corrections to the Drude conductivity due to weak localization and electron-electron interaction dominating in the conductivity. The THz conductivity method is employed to study the modification of the density of states and provides evidence for a strong change in density of states at the Fermi level caused by the quantum effects.
Źródło:: Acta Physica Polonica A; 2008, 113, 3; 875-878
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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