Temat: 22–23 - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spin-Dependent Transport through SU(4) Kondo Dot in the Presence of Spin-Flip Processes
Autorzy:: Krychowski, D.
Lipiński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1534863.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.22.-f
73.23.-b
73.63.Fg
Opis:: The spin-resolved current of carbon nanotube quantum dot coupled to ferromagnetic electrodes and influenced by spin-flip scattering is studied in the Kondo regime by the equation of motion method.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 955-956
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Kondo Effect in Carbon Nanotube Quantum Dot in a Magnetic Field
Autorzy:: Krychowski, D.
Lipiński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1810539.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.22.-f
73.23.-b
73.63.Fg
Opis:: The out-of-equilibrium electron transport of carbon nanotube semiconducting quantum dot placed in a magnetic field is studied in the Kondo regime by means of the non-equilibrium Green functions. The equation of motion method is used. For parallel magnetic field the Kondo peak splits into four peaks, following the simultaneous splitting of the orbital and spin states. For perpendicular field orientation the triple peak structure of density of states is observed with the central peak corresponding to orbital Kondo effect and the satellites reflecting the spin and spin-orbital fluctuations.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 293-295
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Kondo-Fano Effect in Double Quantum Dot Side Attached to a Pair of Wires
Autorzy:: Krychowski, D.
Lipiński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1386758.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.10.Fk
73.21.-b
73.22.-f
73.23.-b
Opis:: Electron tunneling through a double quantum dot side coupled to a pair of leads is examined in finite-U slave boson mean field approach. Both the two-impurity Kondo regime at half filling and one-and three-electron Kondo effects are analyzed. Special attention is paid to the case when one of the dots is coupled to ferromagnetic lead and another to nonmagnetic. Depending on the gate voltage, the same or opposite sign of polarizations of conductance of the leads is observed.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 487-489
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Fano-Kondo Effect of Magnetic Impurity with Side-Coupled Graphene Flake
Autorzy:: Krychowski, D.
Kopiński, J.
Lipiński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1201853.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.22.Pr
72.80.Vp
73.23.-b
72.15.Qm
85.75.-d
Opis:: We examine transport through a spin-1/2 Kondo impurity, patterned between atomic scale electrodes in the presence of side-coupled nanographene flake. Impurity is attached to the edge of the flake, what allows to test the edge states. The Kotliar Ruckenstein slave boson approach is adopted to describe the strongly correlated impurity. We show that transport measurement of Fano-Kondo effect can serve as a spectroscopic probe of spin resolved graphene flake energy levels. The edge moments can be completely suppressed by gate voltage.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 202-203
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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