Temat: 73.22.Lp - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Phonon-plasmon interactions in inhomogeneous semiconductor plasma embedded with nanoparticle cluster
Autorzy:: Ghosh, S.
Dubey, P.
Powiązania:: https://bibliotekanauki.pl/articles/1050820.pdf
Data publikacji:: 2018-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.30.+q
72.50.+b
73.22.Lp
Opis:: Phonon-plasmon interaction in inhomogeneous piezosemiconductor embedded with a nanoparticle cluster is examined using hydrodynamic model of plasma and macroscopic model of piezoelectric media. Present work dealt with the extensive investigation of acoustic wave amplification characteristics. The effects of density gradient δ and non-dimensional parameter l related to nanoparticle cluster on acoustic gain have been studied with varying medium electron density n_{0e}, wave frequency ω and velocity ratio ϑ_{0}/ϑ_{s}. The results so obtained, infer that the varying inhomogeneity and presence of nanoparticle cluster within the semiconductor plasma medium play decisive role in depicting the gain characteristics of acoustic wave.
Źródło:: Acta Physica Polonica A; 2018, 133, 5; 1287-1293
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

Skocz do pozycji: 3.

Tytuł:: Magnetic Structure of Electronic Inhomogeneities in Cuprates: Competition between Stripes and Spirals
Autorzy:: Seibold, G.
Markiewicz, R.
Lorenzana, J.
Powiązania:: https://bibliotekanauki.pl/articles/1426709.pdf
Data publikacji:: 2012-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.27.+a
73.22.Gk
75.10.Lp
Opis:: It is shown that the magnetic structure of high-$T_{c}$ superconductors is strongly influenced by the next-nearest neighbor hopping parameter t' which distinguishes different families of cuprates. Our investigations indicate that uniform spirals get favored by a large t'/t ratio but are unstable at small doping towards stripes with spin canting. For large |t'/t| spirals can be stabilized under certain conditions in the overdoped regime which may explain the elastic incommensurate magnetic response recently observed in iron-co-doped Bi2201 materials.
Źródło:: Acta Physica Polonica A; 2012, 121, 5-6; 1019-1022
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja