From summer 2016 I'm at

Tianjin International Center of Nanoparticles and  Nanosystems

You reach me at klavshansen(at)

or on phone

+86 1 560 207 8094

Mailing address:

Tianjin International Center of Nanoparticles and  Nanosystems,

Tianjin University,

92 Weijin Road,

Nankai district,

Tianjin 300072,


Erice workshop 2016

Delocalized electrons in Atomic and Molecular Nanoclusters

This workshop is over, but you can at least enjoy the group picture


Table of contents

Order here (external link)

The book is available as a softcover print-on-demand for 25 Euros/US$ if your library subscribes to a Springer e-book package.

Errata (2017-01-15)

My publications

(updated 2016-11-11)

                              Welcome to the home page of
                                  Klavs Hansen

                     I work with statistical processes in clusters and large molecules.
                             Tools: Ion storage rings, mass spectrometers, lasers
                          Subjects: Energies, thermodynamics, radiative cooling

     Recent publications

     Spontaneous decay of small copper cluster anions Cu
n-, n = 3 - 6 on long time scales
     K. Hansen, M.H. Stockett, M. Kaminska, R.F. Nascimento, E.K. Anderson, M. Gatchell, K.C. Chartkunchand, G. Eklund,
     H. Zettergren, H.T. Schmidt, and H. C Cederquist

     Phys. Rev. A 95 (2017) 022511
Single Photon Thermal Ionization of C60
     Klavs Hansen, Robert Richter, Michael Alagia, Stefano Stranges, Luca Schio, Peter Salén, Vasyl Yatsyna, Raimund Feifel, and Vitali Zhaunerchyk
     Phys. Rev. Lett.
118 (2017) 103001
     Selected as Editor's Suggestion

  Gold cluster electronic radiative cooling and abundances
     Klavs Hansen, Piero Ferrari Ramirez, Ewald Janssens, Peter Lievens
     J. Phys. Chem. C (in press)

The effect of a localized charge on the structure and stability of Van-Der Waals clusters
     I. Rahinov, Y. Toker, K. Hansen, D. Schwalm, O. Heber, and D. Zajfman
     Eur. Phys. J. D 70 (2016) 260

     Effect of conformers on free energies of atmospheric complexes
     Lauri Partanen, Hanna Vehkamäki, Klavs Hansen, Jonas Elm, Henning Henschel, Theo Kurtén, Roope Halonen, and Evgeni Zapadinsky
     J. Phys. Chem.
120 (2016) 8613-8624
Detection of Recurrent Fluorescence Photons
    Yuta Ebara, Takeshi Furukawa, Jun Matsumoto, Hajime Tanuma, Toshiyuki Azuma, Haruo Shiromaru, and Klavs Hansen
     Phys. Rev. Lett
117 (2016) 133004

    Comment on L. Holmlid, Int. J. Mass Spec. 
352 (2013) 1
    K. Hansen
    Int. J. Mass Spec.
399-400 (2016)  51-52