Temat: 73.63.Fg - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cotunneling Transport at Singlet-Triplet Transition in Carbon Nanotube Quantum Dots
Autorzy:: Ilnicki, G.
Moriyama, S.
Martinek, J.
Fuse, T.
Ishibashi, K.
Powiązania:: https://bibliotekanauki.pl/articles/1810544.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.22.-f
73.23.Hk
73.63.Fg
Opis:: Electronic transport through a quantum dot in the Coulomb-blockade cotunelling regime is investigated both experimentally and theoretically, where a single-wall carbon-nanotube weakly coupled to metallic leads plays a role of the dot. We observe a pronounced current peak for the singlet-triplet transition in a half-shell filling regime due to inelastic cotunneling processes. Using the second order perturbation theory we explain physical mechanisms determining the details of signal.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 299-302
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Coupling between Electronic and Vibrational Excitations in Carbon Nanotubes Filled with $C_{60}$ Fullerenes
Autorzy:: Utko, P.
Ferone, R.
Krive, I.
Shekhter, R.
Jonson, M.
Monthioux, M.
Noé, L.
Nygård, J.
Powiązania:: https://bibliotekanauki.pl/articles/1492807.pdf
Data publikacji:: 2011-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.63.Fg
73.63.Kv
73.23.Hk
73.22.Lp
71.38.-k
Opis:: We investigate the low-temperature electron transport through $C_{60}$ peapods, which are carbon nanotubes encapsulating $C_{60}$ fullerenes. We find that the temperature dependence of the Coulomb blockade oscillations in peapod quantum dots deviates from conventional Breit-Wigner behavior, showing signatures of the Franck-Condon blockade of conductance. This indicates the presence of a coupling between electronic states and vibrational excitations. Unlike for suspended empty nanotubes, these are not intrinsic vibrational modes of the tube but mechanical vibrations of the encapsulated fullerenes that affect the electronic transport. Fullerene peapods thus emerge as a new class of nanoelectromechanical systems.
Źródło:: Acta Physica Polonica A; 2011, 120, 5; 839-841
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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