Zobrazeno 1 - 10
of 478
pro vyhledávání: '"Kremer, Friedrich"'
Publikováno v:
J. Chem. Phys. 154 (2021) 024503
To test basic assumptions inherent to most theories of molecular liquids and glasses, Infrared spectroscopy is carried out on short polyalcohols at temperatures ranging from far above to far below their glass transition. By analyzing specific vibrati
Externí odkaz:
http://arxiv.org/abs/2009.02370
Publikováno v:
Phys. Rev. Materials 4, 034601 (2020)
This work reports on temperature-induced out-diffusion and concentration decay of the prominent intrinsic point defect VNi (nickel vacancy) in the wide-gap p-type semiconductor nickel oxide (NiO). VNi can easily be introduced into NiO thin films by o
Externí odkaz:
http://arxiv.org/abs/2001.04704
Publikováno v:
Phys. Rev. B 99, 235201 (2019)
In this work, we revisit the issue of the nature of electronic transport in nickel oxide (NiO) and show that the widely used model of free small polaron hopping, initially raised to characterize transport in high-purity samples, is not appropriate fo
Externí odkaz:
http://arxiv.org/abs/1905.03537
Publikováno v:
Macromolecules, 2017, 50 (10), pp 4022 - 4029
Glassy dynamics and charge transport are studied for the polymeric Ionic Liquid (PIL) poly(tris(2-(2-methoxyethoxy)ethyl)ammonium acryloxypropylsulfonate) (PAAPS) with varying molecular weight (9700, 44200, 51600 and 99500 g per mol) by Broadband Die
Externí odkaz:
http://arxiv.org/abs/1810.03823
The theory of orientation polarization and dielectric relaxation was developed by P. Debye more than 100 years ago. It is based on approximating a molecule by a sphere having one or more dipole moments. By that the detailed intra- and intermolecular
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A89086
https://ul.qucosa.de/api/qucosa%3A89086/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A89086/attachment/ATT-0/
Autor:
Kipnusu, Wycliffe K., Zeigermann, Philipp, Iacob, Ciprian, Kremer, Friedrich, Schoen, Martin, Mazza, Marco G., Valiullin, Rustem
Deviations of molecular shapes from spherical symmetry may give rise to a variety of novel phenomena, including their dynamic behavior. It has recently been predicted [Mazza \textit{et al}. Phys. Rev. Lett. \textbf{105}, 227802 (2010)] that liquid cr
Externí odkaz:
http://arxiv.org/abs/1406.5868
Autor:
Kegler, Kati, Konieczny, Martin, Dominguez-Espinoza, Gustavo, Gutsche, Christof, Salomo, Matthias, Kremer, Friedrich, Likos, Christos N.
Optical tweezers are employed to measure the forces of interaction within a single pair of DNA-grafted colloids in dependence of the molecular weight of the DNA-chains, and the concentration and valence of the surrounding ionic medium. The resulting
Externí odkaz:
http://arxiv.org/abs/0710.0303
Autor:
Gutsche, Christof, Kremer, Friedrich, Krüger, Matthias, Rauscher, Markus, Weeber, Rudolf, Harting, Jens
Publikováno v:
J. Chem. Phys. 129, 084902 (2008)
We present micro-rheological measurments of the drag force on colloids pulled through a solution of lambda-DNA (used here as a monodisperse model polymer) with an optical tweezer. The experiments show a violation of the Stokes-Einstein relation based
Externí odkaz:
http://arxiv.org/abs/0709.4142