199 citations · 406 across the 10 of their papers we have counts for
10 papers
Temperature and frequency dependent optical properties of ultra-thin Au films
Tobby Brandt, Martin Hövel, Bruno Gompf +1
While the optical properties of thin metal films are well understood in the visible and near-infrared range, little has been done in the mid- and far-infrared region. Here we inves…
Direct Observation of Quantum Coherence in Single-Molecule Magnets
C. Schlegel, J. van Slageren, M. Manoli +2
Direct evidence of quantum coherence in a single-molecule magnet in frozen solution is reported with coherence times as long as T2 = 630 ns. We can strongly increase the coherence…
Crossover from one-dimensional copper-oxygen chains to two-dimensional ladders charge transport in (La,Y)y(Sr,Ca)14-yCu24O41
T. Ivek, T. Vuletic, B. Korin-Hamzic +8
The charge transport in the copper-oxygen chain/ladder layers of (La,Y)y(Sr,Ca)14-yCu24O41 is investigated along two crystallographic directions in the temperature range from 50 K…
Quasi-Particle Dynamics in Superconducting Aluminum
Katrin Steinberg, Marc Scheffler, Martin Dressel
The response of superconducting aluminum to electromagnetic radiation is investigated in a broad frequency (45 MHz to 40 GHz) and temperature range (), by measuring the co…
Analysis of broadband microwave conductivity and permittivity measurements of semiconducting materials
Elvira Ritz, Martin Dressel
We perform broadband phase sensitive measurements of the reflection coefficient from 45 MHz up to 20 GHz employing a vector network analyzer with a 2.4 mm coaxial sensor which is t…
Influence of electronic correlations on the frequency-dependent hopping transport in Si:P
Elvira Ritz, Martin Dressel
At low energy scales charge transport in the insulating Si:P is dominated by activated hopping between the localized donor electron states. Thus, theoretical models for a disordere…