20 citations · 86 across the 12 of their papers we have counts for
13 papers
Negative charging energy in LaAlO/SrTiO quantum dots induced by SrTiO polarization
J. Czarnecki, A. Sierant, B. Szafran +12
We propose a microscopic mechanism for the negative charging energy in LaAlO/SrTiO quantum dots, arising from the electrostatic image charge associated with the paraelectri…
Spin SWAP operation in double quantum dots at the LaAlO3/SrTiO3 interface
A. Sierant, J. Czarnecki, B. Szafran +1
Progress in the fabrication of nanoscale transition-metal-oxide heterostructures makes these platforms promising candidates for the realization of spin qubits, mainly due to the $d…
Merging and oscillations of dipolar Bose-Einstein condensate droplets
Wojciech Orłowski, Bartłomiej Szafran
We investigate the dynamics of Bose-Einstein condensate droplets composed of Dy atoms formed in a double-well potential following removal of the interwell barrier. By solvi…
Spin Hall and Edelstein effects in a ballistic quantum dot with Rashba spin-orbit coupling
Alfonso Maiellaro, Francesco Romeo, Mattia Trama +11
We study spin-resolved transport in a ballistic quantum dot with Rashba spin-orbit coupling, focusing on charge-to-spin conversion and spin Hall effect. In the regime where the dot…
Infrared Imaging using thermally stable HgTe/CdS nanocrystals
Huichen Zhang, Yoann Prado, Rodolphe Alchaar +20
Transferring the nanocrystals (NCs) from the laboratory environment toward practical applications has raised new challenges. In the case of NCs for display and lightning, the focus…
Insights into electronic and transport properties of phosphorene nanorings in two perpendicular directions: Effects of circular and elliptical external potentials
MohammadAmir Bazrafshan, Farhad Khoeini, Bartlomiej Szafran
In this work, we study the electronic and transport properties of phosphorene nanorings in two perpendicular directions (zigzag and armchair directions) in the presence of zigzag m…
Exciton localization on p-i-n junctions in two-dimensional crystals
B. Szafran
We consider a neutral exciton localized on a model p-i-n junction defined in a two-dimensional crystal: MoSe and phosphorene, using a variational approach to the effective mass…
Controllable spin filtering and half metallicity in -borophene nanoribbons
Fahimeh Norouzi, Mohsen Farokhnezhad, Mahdi Esmaeilzadeh +1
The experimental observation of the Dirac fermion states in -borophene sheets and the discovery of their novel topological properties properties have made them a promising…
Paired electron motion in interacting chains of quantum dots
B. Szafran
We study the motion of a pair of electrons along two separate parallel chains of quantum dots. The electrons that are released from the central dot of each chain tend to accompany…
Imaging snake orbits at graphene n-p junctions
K. Kolasiński, A. Mreńca-Kolasińska, B. Szafran
We consider conductance mapping of the snake-orbits confined along the n-p junction defined in graphene by the electrostatic doping in the quantum Hall regime. We explain the perio…
Conductance response of graphene nanoribbons and quantum point contacts in the scanning probe measurements
Alina Mreńca, Krzysztof Kolasiński, Bartłomiej Szafran
We provide a theoretical study of the conductance response of systems based on graphene nanoribbon to the potential of a scanning probe. The study is based on the Landauer approach…
Wave function description of conductance mapping for quantum Hall electron interferometer
K. Kolasiński, B. Szafran
Scanning gate microscopy of quantum point contacts (QPC) in the integer quantum Hall regime is considered in terms of the scattering wave functions with a finite-difference impleme…
Imaging of double slit interference by scanning gate microscopy
K. Kolasiński, B. Szafran, M. P. Nowak
We consider scanning gate microscopy imaging of the double slit interference for a pair of quantum point contacts (QPCs) defined within the two-dimensional electron gas. The interf…