Associate Professor:

Kristine Niss

IMFUFA, NSM, RUC

Do simple liquids exist?

"Isochronal jumps in the phase diagram studied by neutron scattering"

Experimental studies of the dynamics in molecular liquids from pico- to kilosecond as a function of temperature and pressure.

A project funded by DFF Sapere Aude : Starting Grant

Publications

  • Two measures of isochronal superposition
    Lisa Anita Roed, Ditte Gundermann, Jeppe C. Dyre, and Kristine Niss Journal of Chemical Physics 139, 101101 (2013).

  • Communication: Identical temperature dependence of the time scales of several linear-response functions of two glass-forming liquids
    B. Jakobsen, T. Hecksher, T. Christensen, N. B. Olsen, Jeppe C. Dyre, and K. Niss Journal of Chemical Physics 136, 081102 (2012).

  • Dynamic thermal expansivity of liquids near the glass transition
    Kristine Niss, Ditte Gundermann, Tage Christensen, and Jeppe C. Dyre Physical Review E, 85 , 016313 (2012).

  • Predicting the density scaling exponent from Prigogine-Defay ratio measurements
    Ditte Gundermann, Ulf R. Pedersen, Tina Hecksher, Nicholas P. Bailey, Bo Jakobsen, Tage Christensen, Niels B. Olsen, Thomas B. Schrøder, Daniel Fragiadakis, Riccardo Casalini, C. Michael Roland, Jeppe C. Dyre, and Kristine Niss Nature Physics 7, 816 (2011).

  • Beta relaxation in the shear mechaniqs of viscous liquids: Phenomenology and network modeling of the alpha-beta merging region.
    Bo Jakobsen, Kristine Niss, Claudio Maggi, Niels Boye Olsen, Tage Christensen, and Jeppe C. Dyre Journal of Non-Crystalline Solids 357 , 267 (2011)

  • The Role of Chain Length in Nonergodicity Factor and Fragility of Polymers
    Cecile Dalle-Ferrier , Kristine Niss, Alexei P. Sokolov, Bernhard Frick, Jorge Serrano, and Christiane Alba-Simionesco Macromolecules, 43, 8977 (2010)

  • Physical aging of molecular glasses studied by a device allowing for rapid thermal equilibration
    Tina Hecksher, Niels Boye Olsen, Kristine Niss, and Jeppe C. Dyre Journal of Chemical Physics, 133, 174514 (2010)

  • Connection between slow and fast dynamics of molecular liquids around the glass transition
    Kristine Niss, Cecile Dalle-Ferrier, Bernhard Frick, Daniela Russo, Jeppe Dyre and Christiane Alba-Simionesco Physical Review E, 82, 021508 (2010)

  • An electrical circuit model of the alpha-beta merging seen in dielectric relaxation of ultraviscous liquids
    Neslihan Saglanmak, Albena I. Nielsen, Niels Boye Olsen, Jeppe C. Dyre, Kristine Niss Journal of Chemical Physics 132, 024503 (2010)

  • A brief critique of the Adam-Gibbs entropy model
    Jeppe C. Dyre, Tina Hecksher, Kristine Niss Journal of Non-Crystalline Solids 355, 624 (2009)

  • Prevalence of approximate √t relaxation for the dielectric α process in viscous organic liquids
    Albena I. Nielsen, Tage Christensen, Bo Jakobsen, Kristine Niss, Niels Boye Olsen, Ranko Richert, Jeppe C. Dyre Journal of Chemical Physics 130, 154508 (2009)

  • Glassy properties and viscous slowing down: An analysis of the correlation between nonergodicity factor and fragility
    Kristine Niss, Cécile Dalle-Ferrier, Valentina M. Giordano, Giulio Monaco, Bernhard Frick, Christiane Alba-Simionesco, Journal of Chemical Physics 129, 194513 (2008)

  • Glass-forming liquids: one or more 'order'-parameters?
    Nicholas P. Bailey, Tage Christensen, Bo Jakobsen, Kristine Niss, Niels Boye Olsen, Ulf R Pedersen, Thomas B. Schrøder, Jeppe C. Dyre Journal of Physics: Condensed Matter 20, 244113 (2008)

  • On the correlation between fragility and stretching in glass-forming liquids
    Kristine Niss, Cécile Dalle-Ferrier, Gilles Tarjus, Christiane Alba-Simionesco Journal of Physics: Condensed Matter 19, 076102 (2007)

  • Streamline topology in the near-wake of a circular cylinder at moderate Reynolds numbers
    Morten Brøns, Bo Jakobsen, Kristine Niss, Anders Bisgaard, and Lars K. Voigt Journal of Fluid Mechanics 584, 23 (2007)

  • Dielectric and shear mechanical alpha and beta relaxations in seven glass-forming liquids
    Bo Jakobsen, Kristine Niss, Niels Boye Olsen Journal of Chemical Physics, 123, 234511.

  • Dielectric and shear mechanical relaxations in glass-forming liquids: A test of the Gemant-DiMarzio-Bishop model
    Kristine Niss, Bo Jakobsen, Niels Boye Olsen Journal of Chemical Physics, 123, 234510.