Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Kwapinski, T."'
Publikováno v:
Phys. Rev. B 99, 165419 (2019)
Sub-gap transport properties of a quantum dot (QD) coupled to two superconducting and one metallic leads are studied theoretically, solving the time-dependent equation of motion by the Laplace transform technique. We focus on time-dependent response
Externí odkaz:
http://arxiv.org/abs/1812.02153
Autor:
Kwapinski, T., Jalochowski, M.
The influence of charged STM tip on the electron transport through quantum states on a surface is studied both theoretically and experimentally. The current and the differential conductance calculations are carried out by means of the Green's functio
Externí odkaz:
http://arxiv.org/abs/0911.4278
Autor:
Kwapinski, T.
In this paper the transmittance through a quantum wire connected with two electron reservoirs is calculated and non-trivial transformation between the evolution operator method and the Green's function technique is reported. To show this equivalence
Externí odkaz:
http://arxiv.org/abs/0911.2721
Publikováno v:
Ukr. J. Phys. 55 (2010), 85
Time-dependent electron transport through a quantum dot and double quantum dot systems in the presence of polychromatic external periodic quantum dot energy-level modulations is studied within the time evolution operator method for a tight-binding Ha
Externí odkaz:
http://arxiv.org/abs/0911.2247
Publikováno v:
Phys. Lett. A372, 154 (2008)
The STM tunneling through a quantum wire (QW) with a side-attached impurity (atom, island) is investigated using a tight-binding model and the nonequilibrium Keldysh Green function method. The impurity can be coupled to one or more QW atoms. The pres
Externí odkaz:
http://arxiv.org/abs/0712.2907
Autor:
Korczak, Z., Kwapinski, T.
The electrical conductance and RHEED intensities as a function of the coverage have been measured during Pb depositions at 105 K on Si(111)-(6x6)Au with up to 4.2 ML of annealed Pb. The experiments show the strong influence of used substrates on the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601667
Publikováno v:
Phys. Rev. B73, 075415 (2006)
We study electronic and topographic properties of the vicinal Si(557)-Au surface using scanning tunneling microscopy and reflection of high energy electron diffraction technique. STM data reveal double wire structures along terraces. Moreover behavio
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601312
Autor:
Krawiec, M., Kwapinski, T.
Publikováno v:
Surf. Sci. 600, 1697 (2006)
We study transport properties of a strongly correlated monoatomic chain coupled to metallic leads. Our system is described by tight binding Hubbard-like model in the limit of strong on-site electron-electron interactions in the wire. The equation of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511196
Publikováno v:
Acta Physicae Superficierum, 6,151 (2004)
The electrical conductivity changes of the Si(111)-(6x6)Au surface at early stage of Pb deposition was studied experimentally and theoretically as a function of coverage. Pb deposition onto a Si(111)-(6x6)Au surface induce strong change of the conduc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510507
Publikováno v:
phys. stat. sol. (b) 242, 332 (2005)
We study electronic and topographic properties of the Si(335) surface, containing Au wires parallel to the steps. We use scanning tunneling microscopy (STM) supplemented by reflection of high energy electron diffraction (RHEED) technique. The STM dat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510263