62 citations · 192 across the 15 of their papers we have counts for
15 papers
Anisotropy of the spin-orbit coupling driven by a magnetic field in InAs nanowires
P. Wójcik, A. Bertoni, G. Goldoni
We use the theory and the envelope function approach to evaluate the Rashba spin-orbit coupling induced in a semiconductor nanowire by a magnetic fiel…
Interactions of benzene, naphthalene, and azulene with alkali-metal and alkaline-earth-metal atoms for ultracold studies
Paweł Wójcik, Tatiana Korona, Michał Tomza
We consider collisional properties of polyatomic aromatic hydrocarbon molecules immersed into ultracold atomic gases and investigate intermolecular interactions of exemplary benzen…
Enhanced Rashba spin-orbit coupling in core-shell nanowires by the interfacial effect
P. Wójcik, A. Bertoni, G. Goldoni
We report on calculations of Rashba spin-orbit coupling controlled by external gates in InAs/InAsP core-shell nanowires. We show that charge spilling in the b…
Symmetry-Breaking Topological Insulators in the Bose-Hubbard Model
Daniel González-Cuadra, Alexandre Dauphin, Przemysław R. Grzybowski +3
In this work, we study a one-dimensional model of interacting bosons coupled to a dynamical field, the Bose-Hubbard model, and analyze the interplay b…
Fulde-Ferrell state in superconducting core/shell nanowires: role of the orbital effect
M. Mika, P. Wójcik
The orbital effect on the Fulde-Ferrell (FF) phase is investigated in superconducting core/shell nanowires subjected to the axial magnetic field. The confinement in the radial dire…
Spin filtering effect generated by the inter-subband spin-orbit coupling in the bilayer nanowire with the quantum point contact
P. Wójcik, J. Adamowski
The spin filtering effect in the bilayer nanowire with quantum point contact is investigated theoretically. We demonstrate the new mechanism of the spin filtering based on the late…
Electrically controlled spin-transistor operation in helical magnetic field
P. Wójcik, J. Adamowski
A proposal of electrically controlled spin transistor in helical magnetic field is presented. In the proposed device, the transistor action is driven by the Landau-Zener transition…
Resonant Landau-Zener transitions in helical magnetic fields
P. Wojcik, J. Adamowski, M. Woloszyn +1
The spin-dependent electron transport has been studied in magnetic semiconductor waveguides (nanowires) in the helical magnetic field. We have shown that -- apart from the known co…
Non-ballistic spin separator based on Y-shaped nanostructure with a quantum point contact
P. Wojcik, M. Woloszyn, B. J. Spisak +1
A proposal of a spin separator based on the spin Zeeman effect in Y-shaped nanostructure with a quantum point contact is presented. Our calculations show that the appropriate tunin…
Spin transistor operation driven by the Rashba spin-orbit coupling in the gated nanowire
P. Wójcik, J. Adamowski, B. J. Spisak +1
The theoretical description has been proposed for the operation of the spin transistor in the gate-controlled InAs nanowire. The calculated current-voltage characteristics show tha…
Periodicity of resonant tunneling current induced by the Stark resonances in semiconductor nanowire
Maciej Woloszyn, Janusz Adamowski, Pawel Wojcik +1
The modification of the electronic current resulting from Stark resonances has been studied for the semiconductor nanowire with the double-barrier structure. Based on the calculate…
Spin filter effect at room temperature in GaN/GaMnN ferromagnetic resonant tunneling diode
P. Wójcik, J. Adamowski, M. Wołoszyn +1
We have investigated the spin current polarization without the external magnetic field in the resonant tunneling diode with the emitter and quantum well layers made from the ferrom…
Intrinsic oscillations of spin current polarization in a paramagnetic resonant tunneling diode
Pawel Wojcik, Janusz Adamowski, Maciej Woloszyn +1
A spin- and time-dependent electron transport has been studied in a paramagnetic resonant tunneling diode using the self-consistent Wigner-Poisson method. Based on the calculated c…
Effect of current hysteresis on the spin polarization of current in a paramagnetic resonant tunneling diode
P. Wojcik, B. J. Spisak, M. Woloszyn +1
A spin-dependent quantum transport is investigated in a paramagnetic resonant tunneling diode (RTD) based on a ZnMnSe/ZnBeSe heterostructure. Using the Wigner-Poisson m…
Self-consistent Wigner distribution function study of gate-voltage controlled triple-barrier resonant tunnelling diode
P. Wojcik, B. J. Spisak, M. Woloszyn +1
The electron transport through the triple-barrier resonant tunnelling diode (TBRTD) have been studied by the self-consistent numerical method for the Wigner-Poisson problem. The el…