Publications (12)
Influence of chopped laser light onto the electronic transport through atomic-sized contacts
D. C. Guhr, D. Rettinger, J. Boneberg +3
This article reports on the influence of laser irradiation onto the electrical conductance of gold nanocontacts established with the mechanically controllable breakjunction techniq…
Melting the Superconducting State in the Electron Doped Cuprate PrCeCuO with Intense near-infrared and Terahertz Pulses
M. Beck, M. Klammer, I. Rousseau +8
We studied the superconducting (SC) state depletion process in an electron doped cuprate PrCeCuO by pumping with near-infrared (NIR) and narrow-band THz…
Capped colloids as light-mills in optical traps
F. S. Merkt, A. Erbe, P. Leiderer
Custom-designed colloidal particles in an optical tweezers act as light-mills in a fluid. In particular, aqueous suspensions of capped colloids, in which half of the surface is cov…
Lane reduction in driven 2d-colloidal systems through microchannels
M. Köppl, P. Henseler, A. Erbe +2
The transport behavior of a system of gravitationally driven colloidal particles is investigated. The particle interactions are determined by the superparamagnetic behavior of the…
Diffusive Spreading of Chainlike Molecules on Surfaces
T. Ala-Nissila, S. Herminghaus, T. Hjelt +1
We study the diffusion and submonolayer spreading of chainlike molecules on surfaces. Using the fluctuating bond model we extract the collective and tracer diffusion coefficients D…
Dynamics of fine particles due to quantized vortices on the surface of superfluid He
S. Inui, M. Tsubota, P. Moroshkin +2
Peculiar dynamics of a free surface of the superfluid 4He has been observed experimentally with a newly established technique utilizing a number of electrically charged fine metal…
On ultrafast magnetic flux dendrite propagation into thin superconducting films
B. Biehler, B. -U. Runge, P. Leiderer +1
We suggest a new theoretical approach describing the velocity of magnetic flux dendrite penetration into thin superconducting films. The key assumptions for this approach are based…
Density Reduction and Diffusion in Driven 2d-Colloidal Systems Through Microchannels
P. Henseler, A. Erbe, M. Köppl +2
The behavior of particles driven through a narrow constriction is investigated in experiment and simulation. The system of particles adapts to the confining potentials and the inte…
Understanding depletion forces beyond entropy
C. Bechinger, D. Rudhardt, P. Leiderer +2
The effective interaction energy of a colloidal sphere in a suspension containing small amounts of non-ionic polymers and a flat glass surface has been measured and calculated usin…
Energy-gap dynamics of superconducting NbN thin films studied by time-resolved terahertz spectroscopy
M. Beck, M. Klammer, S. Lang +4
Using time-domain Terahertz spectroscopy we performed direct studies of the photoinduced suppression and recovery of the superconducting gap in a conventional BCS superconductor Nb…
Observation of a New Mechanism of Spontaneous Generation of Magnetic Flux in a Superconductor
A. Maniv, E. Polturak, G. Koren +6
We report the discovery of a new mechanism of spontaneous generation of a magnetic flux in a superconductor cooled through . The sign of the spontaneous flux changes randomly…
Dynamics of the vortex-particle complexes bound to the free surface of superfluid helium
P. Moroshkin, P. Leiderer, K. Kono +2
We present an experimental and theoretical study of the 2D dynamics of electrically charged nanoparticles trapped under a free surface of superfluid helium in a static vertical ele…