KIP-Veröffentlichungen

Jahr	2011
Autor(en)	J. Schindele, A. Reiser, and C. Enss
Titel	Fluctuation-dissipation theorem in liquid and glassy glycerol: Frequency dependent dielectric permittivity and dielectric polarization fluctuation measurements
KIP-Nummer	HD-KIP 11-57
KIP-Gruppe(n)	F3
Dokumentart	Paper
Quelle	Phys. Rev. Lett. 107, 095701 (2011)
doi	http://link.aps.org/doi/10.1103/PhysRevLett.107.095701
Abstract (en)	We show frequency dependent dielectric permittivity and dielectric polarization fluctuation measurements of liquid and glassy glycerol. This allows a direct comparsion of both quantities determined independently. After cooling the glycerol sample to 179 K with a cooling rate of 0.85 K/min we studied the ageing time dependence of the dielectric permittivity and the polarization fluctuations using the identical glycerol sample. A cross-correlation technique allows measurements of noise levels below the amplifier noise. In the frequency range between 0.3 Hz and 300 Hz we find the measured data to be in agreement with the fluctuation-dissipation theorem for the liquid and glassy state not dependending on the ageing time.
bibtex	@article{Sch2011, author = {J. Schindele, A, Reiser, and C. Enss}, title = {Fluctuation-dissipation theorem in liquid and glassy glycerol: Frequency dependent dielectric permittivityand dielectric polarization fluctuation measurements}, journal = {Phys. Rev. Lett.}, volume = {107}, year = {2011}, pages = {095701} }