340 citations
- Martin Luther University Halle-WittenbergDE9 papers
- Max Planck SocietyDE7 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- École Polytechnique Fédérale de LausanneCH4 papers
- European Synchrotron Radiation FacilityFR4 papers
- Institute of Molecular Physics of the Polish Academy of SciencesPL4 papers
- Karlsruhe Institute of TechnologyDE4 papers
- Max Planck Institute for Solid State ResearchDE4 papers
- Polish Academy of SciencesPL4 papers
- Tohoku UniversityJP3 papers
- Adam Mickiewicz University in PoznańPL2 papers
- Freie Universität BerlinDE2 papers
6 papers · 1 filter
Quantum size effects in solitary wires of bismuth
Shadyar Farhangfar
We have performed four-probe electrical transport measurements on solitary highly crystalline wires of semimetallic bismuth with aspect ratios up to 60 at room and at cryogenic tem…
Nonequilibrium charge dynamics of light-driven rings threaded by a magnetic flux
A. S. Moskalenko, A. Matos-Abiague, J. Berakdar
We study theoretically the charge polarization and the charge current dynamics of a mesoscopic ring driven by short asymmetric electromagnetic pulses and threaded by an external st…
Revivals, collapses and magnetic-pulse generation in quantum rings
A. S. Moskalenko, A. Matos-Abiague, J. Berakdar
Using a microscopic theory based on the density matrix formalism we investigate quantum revivals and collapses of the charge polarization and charge current dynamics in mesoscopic…
Nonequilibrium Kondo Effect in a Quantum Dot Coupled to Ferromagnetic Leads
Yasuhiro Utsumi, Jan Martinek, Gerd Schön +2
We study the Kondo effect in the electron transport through a quantum dot coupled to ferromagnetic leads, using a real-time diagrammatic technique which provides a systematic descr…
Indirect Exchange Interaction between two Quantum Dots in an Aharonov-Bohm Ring
Yasuhiro Utsumi, Jan Martinek, Patrick Bruno +1
We investigate the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two spins located at two quantum dots embedded in an Aharonov-Bohm (AB) ring. In such a system the RKKY…
Kondo effect in quantum dots coupled to ferromagnetic leads
J. Martinek, Y. Utsumi, H. Imamura +4
We study the Kondo effect in a quantum dot which is coupled to ferromagnetic leads and analyse its properties as a function of the spin polarization of the leads. Based on a scalin…