Autor: Bułka, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cross-Correlations and Charge Pumping in Shot Noise οf Coupled Quantum Dot System
Autorzy:: Michałek, G.
Bułka, B.
Powiązania:: https://bibliotekanauki.pl/articles/1791333.pdf
Data publikacji:: 2009-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.23.Hk
73.63.Kv
73.50.Td
Opis:: We analyze current auto- and cross-correlations in the system of two capacitively coupled large quantum dots. Our attention is focused on the strong inter-dot coupling when an electron transfer through one of the quantum dots induces charge pumping through the second quantum dot. We show individual contributions to shot noise from various tunneling processes in the charge space.
Źródło:: Acta Physica Polonica A; 2009, 116, 5; 879-881
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Enhancement of Current Auto- and Cross-Correlations in Double Quantum Dots
Autorzy:: Michałek, G.
Bułka, B.
Powiązania:: https://bibliotekanauki.pl/articles/1810396.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.23.Hk
73.63.Kv
73.50.Td
Opis:: Studies of an enhancement of current shot noises are presented for a device of two large quantum dots coupled capacitively. We analyze current-current correlation functions, and show that a dynamical Coulomb blockade is responsible for an enhancement of the Fano factors. This process can lead also to an electron bunching and positive current cross-correlations. Our theoretical results are discussed in light of recent shot noise experiments.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 117-119
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Negative Differential Resistance and Super-Poissonian Shot Noise in a System of Single Electron Transistors
Autorzy:: Michałek, G.
Bułka, B. R.
Powiązania:: https://bibliotekanauki.pl/articles/2028848.pdf
Data publikacji:: 2001-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.23.Hk
73.40.Gk
73.50.Td
Opis:: Currents and their fluctuations in two capacitively coupled single electron transistors were studied within the sequential tunneling approach. A special attention was focused on the effect of the negative differential resistance, which appears due to the Coulomb interactions of accumulated charges on both the single electron transistors. In this case large polarization fluctuations are activated, which results in a significant enhancement of the current shot noise.
Źródło:: Acta Physica Polonica A; 2001, 100, 3; 431-436
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Current Fluctuations in Ferromagnetic Tunnel Junctions
Autorzy:: Bułka, B. R.
Martinek, J.
Michałek, G.
Barnaś, J.
Powiązania:: https://bibliotekanauki.pl/articles/2013034.pdf
Data publikacji:: 2000-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.Pa
73.50.Td
73.23.Hk
73.40.Gk
Opis:: Current shot noise in a double junction consisting of a small metallic grain connected to two ferromagnetic electrodes is analysed in the limit of sequential tunneling. We show that, apart from charge fluctuations, there are strong spin fluctuations. We also show that two distinct relaxation processes can be distinguished in the frequency dependent current noise: one in a low frequency range and corresponding to spin fluctuations and another one in a high frequency range corresponding to charge fluctuations.
Źródło:: Acta Physica Polonica A; 2000, 97, 3; 423-426
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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