Perakis Fivos

Foivos Perakis

Assistant professor

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Works at Department of Physics
Telephone 08-553 785 91
Visiting address Roslagstullsbacken 21
Room C6:3064
Postal address Fysikum 106 91 Stockholm

About me

My group utilizes coherent X-ray scattering techniques to study the molecular structure and dynamics of supercooled liquids and glassy materials, as well as aqueous solutions in biophysics. Experiments involve X-Ray Diffraction (XRD), X-ray Pump-Probe (XPP) and X-ray Photon Correlation Spectroscopy (XPCS) measurements at large X-ray facilities worldwide, such as X-ray synchrotrons and free-electron lasers.

Open positions

We have open positions, so contact me if you are interested in:

  • Erasmus exhange students
  • Bachelor and Master thesis
  • PhD and Postdoc positions


Modern X-ray Science: Theory and Applications, Master course (FK7067)

Project in Experimental Modern Physics, Bachelor course (FK5026)

Colloquia in Physics. PhD course (FK40001)


Selected Publications

Coherent X-rays reveal the influence of cage effects on ultrafast water dynamics

Nature Communications  9, 1917 (2018)

F. Perakis, G. Camisasca, T. J. Lane, A. Späh, K. T. Wikfeldt, J. A. Sellberg, F. Lehmkühler, H. Pathak, K. H. Kim, K. Amann-Winkel, S. Schreck, S Song, T. Sato, M. Sikorski, A. Eilert, T. McQueen, H. Ogasawara, D. Nordlund, W. Roseker, J. Koralek, S. Nelson, P. Hart, R. Alonso-Mori, Y. Feng, D. Zhu, A. Robert, G. Grübel, L. G.M. Pettersson & A. Nilsson

Maxima in the thermodynamic response and correlation functions of deeply supercooled water

Science 358, 1589-1593 (2017)

K. H. Kim, A. Späh, H. Pathak, F. Perakis, D. Mariedahl, K. Amann-Winkel, J. A. Sellberg, J. H. Lee, S. Kim, J. Park, K. H. Nam, T. Katayama, A. Nilsson

Diffusive dynamics during the high-to-low density transition in amorphous ice

PNAS 114, 8193-8198 (2017)

F. Perakis, K. Amann-Winkel, F. Lehmkühler, M. Sprung, D. Mariedahl, J. A. Sellberg, H. Pathak, A. Späh, F. Cavalca, D. Schlesinger, A. Ricci, A. Jain, B. Massani, F. Aubree, C. J. Benmore, T. Loerting, G. Grübel, L. G. M. Pettersson, and A. Nilsson

Temperature-Independent Nuclear Quantum Effects on the Structure of Water

Phys. Rev. Lett. 119, 075502 (2017)

K. H. Kim, H. Pathak, A. Späh, F. Perakis, D. Mariedahl, J. A. Sellberg, T. Katayama, Y. Harada, H. Ogasawara, L. G. M. Pettersson, and A. Nilsson

Vibrational Spectroscopy and Dynamics of Water

Chem.Rev. 116, 7590−7607 (2016) (pdf)

F. Perakis, L. De Marco, A. Shalit, F. Tang, Z. R. Kann, T. D. Kuhne, R. Torre, M. Bonn, and Y. Nagata


Research Activity

Assistant Professor (tenure track) 2019 -

Department of Physics, Stockholm University


Researcher 2016 – 2018

Department of Physics, Stockholm University


Postdoctoral Scholar 2014 – 2016

SLAC National Accelerator Laboratory, Stanford University


Visiting Research Scholar 2013

Crete Center for Quantum Complexity and Nanotechnology, University of Crete




Ph.D. in Physical Chemistry 2008 – 2013

Institute of Physical Chemistry, University of Zurich

Diploma in Physics 2002 – 2008

Physics Department, University of Crete

Erasmus studies 2004 – 2005

Physics Department, University of Amsterdam

Last updated: August 16, 2019

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