57 citations · 167 across the 7 of their papers we have counts for
7 papers
From flat to tilted: gradual interfaces in organic thin film growth
Laura Katharina Scarbath-Evers, René Hammer, Dorothea Golze +3
We investigate domain formation and local morphology of thin films of -sexithiophene (-6T) on Au(100) beyond monolayer coverage by combining high resolution scanning tunnelin…
The worm-LBM, an algorithm for a high number of propagation directions on a lattice Boltzmann grid: the case of phonon transport
René Hammer, Verena Fritz, Natalia Bedoya-Martínez
The lattice Boltzmann method (LBM) is a numerical approach to tackle problems described by a Boltzmann type-equation, where time, space, and velocities are discretized to describe…
Single-cone real-space finite difference scheme for the time-dependent Dirac equation
René Hammer, Walter Pötz, Anton Arnold
A finite difference scheme for the numerical treatment of the (3+1)D Dirac equation is presented. Its staggered-grid intertwined discretization treats space and time coordinates on…
Dynamics of domain-wall Dirac fermions on a topological insulator: a chiral fermion beam splitter
René Hammer, Walter Pötz
The intersection of two ferromagnetic domain walls placed on the surface of topological insulators provides a one-way beam splitter for domain-wall Dirac fermions. Based on an anal…
Staggered grid leap-frog scheme for the (2+1)D Dirac equation
René Hammer, Walter Pötz
A numerical scheme utilizing a grid which is staggered in both space and time is proposed for the numerical solution of the (2+1)D Dirac equation in presence of an external electro…
A dispersion and norm preserving finite difference scheme with transparent boundary conditions for the Dirac equation in (1+1)D
René Hammer, Walter Pötz, Anton Arnold
A finite difference scheme is presented for the Dirac equation in (1+1)D. It can handle space- and time-dependent mass and potential terms and utilizes exact discrete transparent b…
Dirac fermion wave guide networks on topological insulator surfaces
René Hammer, Christian Ertler, Walter Pötz
Magnetic texturing on the surface of a topological insulator allows the design of wave guide networks and beam splitters for domain-wall Dirac fermions. Guided by simple analytic a…