149 citations · 326 across the 14 of their papers we have counts for
14 papers
Two-site Bose-Hubbard hopping and Schrödinger cat states
Madeline Berezowski, Artur Sowa, Jonas Fransson
The Bose-Hubbard Hamiltonian can be simplified to have only two lattice sites, in which case the system being described is referred to as a dimer. Due to its structure, the hopping…
Phonon-mediated spin-spin interactions
J. Fransson
Indirect long range interactions between localized magnetic moments are in metals mediated by itinerant electrons. In insulators and semi-conductor, such interactions need to be sm…
Voltage induced switching dynamics of a coupled spin pair in a molecular junction
T. Saygun, J. Bylin, H. Hammar +1
Molecular spintronics is made possible by the coupling between electronic configuration and magnetic po- larization of the molecules. For control and application of the individual…
Time-dependent spin and transport properties of a single-molecule magnet in a tunnel junction
H. Hammar, J. Fransson
In single-molecule magnets, the exchange between a localized spin moment and the electronic background provides a suitable laboratory for studies of dynamical aspects of both local…
Magnon Dirac materials
J. Fransson, A. M. Black-Schaffer, A. V. Balatsky
We demonstrate how a Dirac-like magnon spectrum is generated for localized magnetic moments forming a two-dimensional honeycomb lattice. The Dirac crossing point is proven to be ro…
Filling of magnetic-impurity-induced gap in topological insulators by potential scattering
A. M. Black-Schaffer, A. V. Balatsky, J. Fransson
We show that the energy gap induced by ferromagnetically aligned magnetic impurities on the surface of a topological insulator can be filled, due to scattering off the non-magnetic…
Inelastic-impurity-scattering-induced spin texture and topological transitions in surface electron waves
J. Fransson
Inelastic scattering off magnetic impurities in a spin-chiral two-dimensional electron gas, e.g., the Rashba system, is shown to generate topological changes in the spin texture of…
Engineered Near-Perfect Back-Scattering on Surface of Topological Insulator with Non-Magnetic Impurities
J. Fransson, A. M. Black-Schaffer, A. V. Balatsky
We show how to engineer enhanced skew scattering and gap-like opening in the surface state of three-dimensional topological insulators using only non-magnetic impurities. Enhanced…
Molecular Graphene under the Eye of Scattering Theory
H. Hammar, P. Berggren, J. Fransson
The recent experimental observations of designer Dirac Fermions and topological phases in molecular graphene are addressed theoretically. Using scattering theory we calculate the e…
Inelastic electron tunneling spectroscopy at local defects in graphene
J. Fransson, J. -H. She, L. Pietronero +1
We address local inelastic scattering from vibrational impurity adsorbed onto graphene and the evolution of the local density of electron states near the impurity from weak to stro…
Stability and chaos of a driven nano-electromechanical Josephson junction
P. Berggren, J. Fransson
We consider the motion of and Josephson current through a mechanically oscillating superconducting island asymmetrically embedded in a Josephson junction. The electromechanical cou…
Imaging spin-inelastic Friedel oscillations emerging from magnetic impurities
J. Fransson, A. V. Balatsky
We consider inelastic scattering of localized magnetic moments coupled with the electrons on the surface. We argue that spin-inelastic transitions of the magnetic impurities genera…
Dynamical properties of a vibrating molecular quantum dot in a Josephson junction
J. Fransson, A. V. Balatsky, J. -X. Zhu
We investigate dynamical transport aspects of a combined nanomechanical-superconducting device in which Cooper pair tunneling interfere with the mechanical motion of a vibrating mo…
Detection and Cloaking of Molecular Objects in Coherent Nanostructures Using Inelastic Electron Tunneling Spectroscopy
J. Fransson, H. C. Manoharan, A. V. Balatsky
We address quantum invisibility in the context of electronics in nanoscale quantum structures. We make use of the freedom of design that quantum corrals provide and show that quant…