Temat: 72.10.Fk - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effect of Disorder on Spin and Charge Excitations in the Fractional Quantum Hall Effect
Autorzy:: Výborný, K.
Müller, Ch.
Dethlefsen, A. F.
Haug, R. J.
Wójs, A.
Powiązania:: https://bibliotekanauki.pl/articles/2047400.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.43.-f
75.10.Jm
72.10.Fk
73.63.-b
Opis:: A simple model of disorder in fractional quantum Hall systems is combined with the standard exact diagonalisation technique. Electron-density-dependent gaps at filling factors 1/3,2/3,2/5, and 3/5 measured by activated transport can then be fitted with a single reasonable value of d which has the meaning of the separation of ionized donors from the quasi-2D electron gas.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 249-254
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Spectroscopy of a Single Si Donor by the Resonant Tunnelling Experiment
Autorzy:: Baj, M.
Gryglas, M.
Jouault, B.
Maude, D.
Faini, G.
Gennser, U.
Cavanna, A.
Powiązania:: https://bibliotekanauki.pl/articles/2046906.pdf
Data publikacji:: 2006-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.63.-b
73.40.Gk
73.20.Hb
72.10.Di
72.10.Fk
Opis:: Resonant tunnelling via single impurities placed in a single barrier was experimentally studied. The typically observed structures in the current-voltage characteristics seem to be paired. Such a pair can be interpreted as ground and excited states of an impurity, related to X$\text{}_{xy}$ and X$\text{}_{z}$ valleys, which is in agreement with the results obtained for big mesas. However, it is not clear why X$\text{}_{xy}$ states can be seen without any phonon participation.
Źródło:: Acta Physica Polonica A; 2006, 110, 2; 157-162
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Thermoelectric Effects in Carbon Nanotube Quantum Dot in the Kondo Regime
Autorzy:: Krychowski, D.
Lipiński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1813488.pdf
Data publikacji:: 2008-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.63.KV
72.10.Fk
73.63.-b
65.80.+n
Opis:: Thermoelectric effects in a carbon nanotube quantum dot in the Kondo regime are studied by the equation of motion method. The thermopower is highly sensitive to the structure of the spectral density near the Fermi edge. For temperatures close to the Kondo temperature the thermopower approaches a local minimum, which becomes sharper for orbital energies closer to the Fermi level. For higher temperatures the tjermopower increases, but in the temperature range corresponding to charging energy it again drops and achieves significant negative values. We examine the consequences of symmetry breaking of spin-orbital SU(4) system on thermopower.
Źródło:: Acta Physica Polonica A; 2008, 113, 2; 645-649
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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