81 citations · 217 across the 9 of their papers we have counts for
7 papers · 1 filter
Persistent currents in one dimension: the other side of Leggett's theorem
Xavier Waintal, Genevieve Fleury, Kyryl Kazymyrenko +3
We discuss the sign of the persistent current of N electrons in one dimensional rings. Using a topology argument, we establish lower bounds for the free energy in the presence of a…
Anomaly in the relaxation dynamics close to the surface plasmon resonance
Guillaume Weick, Dietmar Weinmann, Gert-Ludwig Ingold +1
We propose an explanation for the anomalous behaviour observed in the relaxation dynamics of the differential optical transmission of noble-metal nanoparticles. Using the temperatu…
Lifetime of the first and second collective excitations in metallic nanoparticles
Guillaume Weick, Rafael A. Molina, Dietmar Weinmann +1
We determine the lifetime of the surface plasmon in metallic nanoparticles under various conditions, concentrating on the Landau damping, which is the dominant mechanism for interm…
A Circuit Model for Domain Walls in Ferromagnetic Nanowires: Application to Conductance and Spin Transfer Torques
Peter E. Falloon, Rodolfo A. Jalabert, Dietmar Weinmann +1
We present a circuit model to describe the electron transport through a domain wall in a ferromagnetic nanowire. The domain wall is treated as a coherent 4-terminal device with inc…
Length-dependent oscillations of the conductance through atomic chains: The importance of electronic correlations
Rafael A. Molina, Dietmar Weinmann, Jean-Louis Pichard
We calculate the conductance of atomic chains as a function of their length. Using the Density Matrix Renormalization Group algorithm for a many-body model which takes into account…
Residual conductance of correlated one-dimensional nanosystems: A numerical approach
Rafael A. Molina, Peter Schmitteckert, Dietmar Weinmann +3
We study a method to determine the residual conductance of a correlated system by means of the ground-state properties of a large ring composed of the system itself and a long non-…