Updated 2014-07-29

Re-& preprint requests to klavs.hansen@physics.gu.se
A pdf file with citation count (2014-07-24) is available here


Cooling dynamics of photo-excited negative carbon cluster ions stored in an ion storage ring
T. Furukawa, G. Ito, M. Goto, T. Majima, H. Tanuma, J. Matsumoto, H. Shiromaru, K. Hansen, T. Azuma:
Proceedings of ICACS26, July 2014
Nucl. Instr. Meth. Phys. Res. B

X-ray induced fragmentation of size-selected salt cluster-ions stored in an ion trap
M.J. Ryding, A. Giuliani, M. Patanen, J. Niskanen, G. Simões, G.B.S. Miller, E. Antonsson, T. Jokinen, C. Miron, O. Björneholm, K. Hansen, K.J. Børve, and E. Uggerud

Finite dimensional non-autonomous model and analytical.numerical method for polymer mixture simulation
E. Mamontov and K. Hansen

In press

None at the moment


Difference in cooling dynamics between photo-excited C6- and C6H-
Gen Ito, Takeshi Furukawa, Hajime Tanuma, Jun Matsumoto, Haruo Shiromaru, Takuya Majima, Motoshi Goto, Toshiyuki Azuma, and Klavs Hansen:
Proceedings of ICPEAC XXVIII, 2013
Journal of Physics: Conference Series
488 (2014) 022036

Radiative cooling of laser heated niobium clusters NbN+, 8 N 22
Klavs Hansen, Yejun Li, Vladimir Kaydashev, and Ewald Janssens
J. Chem. Phys. 141 (2014) 024302       (.pdf)
Copyright (2014) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The article appeared may be found at http://scitation.aip.org/content/aip/journal/jcp/141/2?ver=pdfcov

Cooling dynamics of photo-excited C6 - and C6H -
G. Ito, T. Furukawa, H. Tanuma, J. Matsumoto, H. Shiromaru, T. Majima, M. Goto, T. Azuma, and K. Hansen
Phys. Rev. Lett. 112 (2014) 183001       (.pdf)

Radiative cooling of C7-
K. Najafian, M.S. Pettersson, B. Dynefors, H. Shiromaru, J. Matsumoto, H. Tanuma, T. Furukawa, T. Azuma, K. Hansen
J. Chem. Phys. 140 (2014) 104311       (.pdf)
Copyright (2014) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The article appeared may be found at http://scitation.aip.org/content/aip/journal/jcp/140/10


Direct observation of internal energy distributions of C5-
M. Goto, A.E.K. Sundén, H. Shiromaru, J. Matsumoto, H. Tanuma, T. Azuma, and K. Hansen
J. Chem. Phys. 139 (2013) 054306       (.pdf)
Copyright (2013) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the
American Institute of Physics.
The article appeared may be found at http://link.aip.org/link/?JCP/139/054306&aemail=author DOI: 10.1063/1.4817196

First storage of ion beams in the Double Electrostatic Ion-Ring Experiment – DESIREE
H.T. Schmidt, R.D. Thomas, M. Gatchell, S. Rosén, P. Reinhed, P. Löfgren, L. Brännholm, M. Blom, M. Björkhage, E. Bäckström, J. D. Alexander, S. Leontein, D. Hanstorp, H. Zettergren, L. Liljeby, A. Källberg, A. Simonsson, F. Hellberg, S. Mannervik, M. Larsson, W.D. Geppert, K.G. Rensfelt, H. Danared, A. Paál, M. Masuda, P. Halldéen, G. Andler, M.H. Stockett, T. Chen, G. Källersjö, J. Weimer, K. Hansen, H. Hartman, and H. Cederquist
Rev. Sci. Instrum. 84 (2013) 055115      (.pdf)
Copyright (2013) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.The article may be found at http://link.aip.org/link/?RSI/84/5/htmltoc&aemail=author

Mass-selected photodissociation studies of AlPbn+ clusters (n = 7 – 16): evidence for the extraordinary stability of AlPb10+ and AlPb12+
Soumen Bhattacharyya, Thanh Tung Nguyen, Jorg De Haeck, Klavs Hansen, Peter Lievens, and Ewald Janssens
Phys. Rev. B 87 (2013) 054103       (.pdf)

Statistical physics of nanoparticles in the gas phase
Klavs Hansen
Springer, Dordrecht (2013)
ISBN 978-94-007-5838-4 (print), 978-94-007-5839-1 (online)
Order the book here


Branching ratio between resonant and non-resonant ionizations of xenon evaluated from photoelectron angular distributions
M. Goto and K. Hansen
Phys. Scr. 86 (2012) 035303       (.pdf)

Anisotropic hot electron emission from fullerenes
J. O. Johansson, J. Fedor, M. Goto, M. Kjellberg, J. Stenfalk, G. Henderson, E. E. B. Campbell, and K. Hansen
J. Chem. Phys. 136 (2012) 164301       (.pdf)

Structure, energetics and dynamics of helium adsorbed on isolated fullerene ions
C. Leidlmair, Y. Wang, P. Bartl, H. Schöbel, S. Denifl, M. Probst, M. Alcamí, F. Martín, H. Zettergren, K. Hansen, O. Echt, P. Scheier
Phys. Rev. Lett. 108 (2012) 076101       (.pdf)

Ionization of naphthalene via the Rydberg States using a femtosecond 775 nm pulse
M. Goto and K. Hansen
Chem. Phys. Lett. 522 (2012) 23-27       (preprint)


Competitive ionization processes of anthracene excited with a femtosecond pulse in the multi-photon ionization regime
M. Goto, K. Hansen
J. Chem. Phys. 135 (2011) 214310         (.pdf)

Slow electron attachment as a probe of cluster evaporation processes
R. Rabinovitch, K. Hansen, V. V. Kresin
J. Phys. Chem. A 115 (2011) 6961-6972         (preprint)

Mikroskopiska vattendroppars egenskaper- en pusselbit i klimatfrågan
Erika Sundén and K. Hansen
Fysikaktuellt (2) (2011) 9         (.pdf)


Femtosecond electron spectroscopy of coronene, benzo[GHI]perylene and anthracene
M. Kjellberg, A. V. Bulgakov, M. Goto, O. Johansson, and K. Hansen
J. Chem. Phys. 133 (2010) 074308         (.pdf)

Momentum map imaging photoelectron spectroscopy of fullerenes with femtosecond laser pulses
M. Kjellberg, O. Johansson, F. Jonsson, A.V. Bulgakov, C. Bordas, E.E.B Campbell, K. Hansen
Phys. Rev. A 81 (2010) 023202         (.pdf)
Non-jellium scaling of metal cluster ionization energies and electron affinities

M. Svanqvist and K. Hansen
Eur. Phys. J. D 56 (2010) 199-203      (.pdf)


Absolute cooling rates of freely decaying fullerenes

A.E.K. Sundén, M. Goto, J, Matsumoto, H. Shiromaru, H. Tanuma, T. Azuma, J.U.Andersen, S.E. Canton, and K.Hansen
Phys. Rev. Lett. 103 (2009) 143001         (.pdf)

Activation energies for evaporation from protonated and deprotonated water clusters from mass spectra
K. Hansen, P. Andersson and E. Uggerud
J. Chem. Phys. 131 (2009) 124303                (.pdf)

Near-infrared photoabsorption by C60 dianions in a storage ring
U. Kadhane, J. U. Andersen, E. Bonderup, B. Concina, P. Hvelplund, M.-B. Suhr Kirketerp, B. Liu, S. Brøndsted Nielsen, S. Panja, J. Rangama, K. Støchkel, S. Tomita, H. Zettergren, K. Hansen, A. E. K. Sundén, S. Canton, O. Echt, and J. S. Forster
J. Chem. Phys. 131 (2009) 014301                (.pdf)

Heat capacities of freely evaporating charged water clusters
A.E.K. Sundén, K. Støchkel, S. Panja, U. Kadhane, P. Hvelplund, S. Brøndsted Nielsen, H. Zettergren, B. Dynefors, and K. Hansen
J. Chem. Phys. 130 (2009) 224308                (.pdf)


Comparison of algorithms for the calculation of molecular vibrational level densities

K. Hansen
J.Chem Phys. 128 (2008) 194103                  (.pdf)

Stability and dissociation pathways of doped Au
nX+ clusters (X=Y,Er,Nb)
Nele Veldeman, Ewald Janssens, Klavs Hansen, Jorg De Haeck, Roger E. Silverans and Peter Lievens
Faraday Discussion 138 (2008) 147                  (.pdf)


Competition between fission and intra-cluster fusion in highly excited fullerene clusters
Klavs Hansen, Mikael Kjellberg, Alexander V. Bulgakov and Eleanor E.B Campbell
Israel Journal of Chemistry 47 (2007) 43             (.pdf)

Density of states of helium droplets
K. Hansen, M.D. Johnson and V.V. Kresin
Phys. Rev. B 76 (2007) 235424                  (.pdf)

ISSPIC13 proceedings - Preface
Hansen K. and E.E.B.Campbell
Eur.Phys.J D 43 (2007) 1                 (.pdf)

Energy distributions of clusters cooled by thermal radiation
J.Stenfalk and K.Hansen
Eur.Phys.J. D 43 (2007) 101         (.pdf)

Molecular fusion within fullerene clusters induced by femtosecond laser excitation
M.Hedén, M.Kjellberg, A.V.Bulgakov, K.Hansen, and E.E.B.Campbell:
Eur.Phys.J. D 43 (2007) 255                  (.pdf)


Lifetimes of C60 and C70 dianions in a storage ring
S. Tomita, J.U. Andersen, H. Cederquist, B. Concina, O. Echt, J.S. Forster, K. Hansen, B.A. Huber, P. Hvelplund, J. Jensen, B. Liu, B. Manil, L. Maunoury, S. Br
øndsted Nielsen,  J. Rangama, H.T. Schmidt, H. Zettergren,
Proceedings of ICPEAC XXIV, World Scientific Publishing (2006), P.D. Fainstein, M.A.P. Lima, J.E. Miraglia, E.C. Montenegro, R.D. Rivarola (eds.),
ISBN 978-981-270-412-2, 978-981-270-412-4, page 591.

Ionisation of Fullerenes and Fullerene Clusters using Ultrashort Laser Pulses
Eleanor E.B.Campbell, Klavs Hansen, M.Hedén, Mikael Kjellberg, and Alexander V.Bulgakov:
Photochem. Photobiol. Sci. 5 (2006) 1183 - 1189            (.pdf)

Electric field enhancement factors around a metallic, end-capped cylinder
S. Podenok, M. Sveningsson, K. Hansen, and E.E.B Campbell
Nano 1 (2006) 87                  (.pdf)

Dissociation energies of gold clusters Au+N, N=7-27
K.Hansen, A. Herlert, L. Schweikhard, and M. Vogel
Phys.Rev.A 73 (2006) 063202                (.pdf)

Cluster cooling issue – Foreword
Hansen K., Bordas C.
Int. J. Mass Spec. 252 (2006) VII

The frequency factor in statistical fullerene decay
K. Hansen, E.E.B. Campbell, and O. Echt:
Int. J. Mass Spec. 252 (2006) 79                (link to journal)

Lifetimes of C602- and C702- dianions in a storage ring
S. Tomita, J.U. Andersen, H. Cederquist, B. Concina, O. Echt, J.S. Forster, K. Hansen, B.A. Huber, P. Hvelplund, J. Jensen, B. Liu, B. Manil, L.Maunoury, S. Brøndsted Nielsen, J. Rangama, H.T. Schmidt, H. Zettergren:
J.Chem.Phys. 124 (2006) 024310         (.pdf)


Photodissociation of Au30+ clusters stored in a Penning trap
L. Schweikhard, K. Hansen, A. Herlert, M.D. Herráiz Lablanca and M. Vogel:
Eur.Phys.J.D 36 (2005) 179              (.pdf)

Surface entropy of rare-gas clusters
S.Prasalovich, K. Hansen, M.Kjellberg, V.N.Popok, and E.E.B.Campbell:
J.Chem.Phys.123 (2005) 084317            (.pdf)

Temperature-enhanced electron field emission from individual carbon nanotubes
M.Sveningsson, K.Hansen, K.Svensson, E.Olsson, and E.E.B.Campbell,
Phys.Rev.B 72 (2005) 085429          (.pdf)

Thermal radiation from CN+ and La@CN+
edén, K.Hansen, F.Jonsson, E.Rönnow,  A.Gromov, A.Taninaka, H.Shinohara, and E.E.B.Campbell:
J.Chem.Phys. 123 (2005) 044310          (.pdf)

Molecular Fusion of (C60)N Clusters in the Gas Phase after Femtosecond Laser Irradiation
edén, K. Hansen, E. E. B. Campbell:
Phys.Rev.A 71 (2005) 055201             (.pdf)

The dissociation energy of V13+ and the consequences for radiative cooling
K.Hansen, A.Herlert, L.Schweikhard, M.Vogel, and C.Walther,
Eur.Phys.J.D 34 (2005) 67-71             (.pdf)

A femtosecond laser study of the endoral fullerenes Li@C60 and La@C82
A.Lassesson, K.Hansen, M.Jönsson, A.Gromov,  E.E.B.Campbell, M.Boyle, D.Pop, C.P.Schulz, I.V.Hertel, A.Taninaka and H.Shinohara,
Eur.Phys.J.D 34 (2005) 205-209           (.pdf)

Non-thermal powerlaw decay of metal dimer anions
J.Fedor, K.Hansen, J.U.Andersen, and P.Hvelplund,
Phys.Rev.Lett. 94 (2005) 113201           (.pdf)

Dynamic Jahn-Teller effects in isolated C60- studied by near-infrared spectroscopy in a storage ring
S.Tomita, J.U.Andersen, E.Bonderup, P.Hvelplund, Bo Liu, S.B.Nielsen, U.V.Pedersen, J.Rangama, K.Hansen, O.Echt,
Phys.Rev.Lett. 94 (2005) 053002          (.pdf) 

Obtaining colder ensembles of free clusters by using evaporation and recoil
Klavs Hansen, Kin Wong, and Vitaly V. Kresin,
Eur.Phys.J.D 32 (2005) 339-345          (.pdf)

Cluster studies in ion traps

L. Schweikhard, A.Herlert, G.Marx, K.Hansen,
Proceedings of ISACC2003, World Scientific Publishers

J.-P.Connerade, A.V.Solov'yov (eds.), (2005) 85-95

Laser power dependence in femtosecond ionization of fullerenes

K.Hansen, E.E.B.Campbell, and I.V.Hertel,

Journal of Physics: Conference Series 4 (2005) 282-285      (.pdf)
J.Phys.B © copyright (2003) IOP Publishing Ltd. http://www.iop.org.


Vibrational Energy Dependence of the Triplet Lifetime in Isolated, Photo-Excited C60
O.Echt, S.Yao, R.Deng and K.Hansen,
J. Phys. Chem. A,
108 (2004) 6944-6952.

Signature of cluster isomers in photodissociation experiments
M.Vogel, K.Hansen and L.Schweikhard,
Int.J.Mass Spectrom.  233 (2004)  117-123.        (link to journal)

Do we know the value of the Gspann parameter?
K. Hansen, E.E.B.Campbell,
Int.J.Mass.Spectrom.  233 (2004) 215-221.        (link to journal)
preprint        (.pdf)

Energy distributions in multiple photon absorption experiments
K.Mehlig, K.Hansen,
M.Hedén, A.Lassesson, A.V.Bulgakov, and E.E.B.Campbell,
J.Chem.Phys.120 (2004) 4281-4288        (.pdf)

Kinetic energy release distributions in unimolecular reactions with spherical potentials

Chem.Phys.Lett. 383 (2004) 270-275.          (link to journal)
preprint        (.pdf)


Metal Clusters
K.Hansen and L.Schweikhard

in Encyclopedia of Mass Spectrometry
ed. P.B. Armentrout, Elsevier, Amsterdam, Boston, 2003, p. 770-782

Fabrication of Nb-based Superconducting Single Electron Transisitor
Nam Kim, Klavs Hansen, Sorin Paraoanu and Jukka Pekola,
Physica B 329-333 (2003) 1519-1520.        (link to journal)

Thermal electron emission from the hot electronic subsystem of vibrationally cold C60
K. Hansen, K. Hoffmann, E.E.B. Campbell,
J. Chem. Phys. 119 (2003) 2513-2522       (.pdf)

On the Triplet Lifetime in Free, Photo-Excited C60
R.Deng, M.Treat, O.Echt and K.Hansen,
J.Chem.Phys. 118 (2003) 8563.         (.pdf)

Stability of buckminster-fullerene C60
S.Tomita, J.U.Andersen, K.Hansen and P.Hvelplund,
Chem.Phys.Lett. 382 (2003) 120-125.      (link to journal)

Dissociation energies of silver clusters Agn+, n=14,15,16,18
Klavs Hansen, Alexander Herlert, Lutz Schweikhard and Manuel Vogel,
Int.J.Mass Spectrom. 227 (2003) 87.        (link to journal)

New Approaches to Stored Cluster Ions: The Determination of Dissociation Energies and Recent Studies on Dianionic Metal Clusters
L.Schweikhard, K.Hansen, A.Herlert, G.Marx and M.Vogel:
Eur.Phys.J. D 24 (2003) 137.        (.pdf)

Temperature concepts for small, isolated systems; 1/t decay and radiative cooling
J.U.Andersen, E.Bonderup, K.Hansen, P.Hvelplund, B.Liu, U.V.Pedersen and S.Tomita,
Eur.Phys.J. D 24 (2003) 191.           (.pdf)

Model-independent determination of dissociation energies: methods and applications
Manuel Vogel, Klavs Hansen, Alexander Herlert and Lutz Schweikhard,
J.Phys.B 36 (2003) 1073.               (.pdf)
J.Phys.B © copyright (2003) IOP Publishing Ltd. http://www.iop.org.

Laser Investigations of Stored Metal Cluster Ions
L.Schweikhard, K.Hansen, G.Marx, A.Herlert, M.D.Herráiz Lablanca, M.Vogel,
Contribution to the APAC 2001 proceedings.
Hyp.Int. 146-147 (1-4) (2003) 275-281.    (link to journal)


The Influence of internal degrees of freedom on the unimolecular decay of the molecule cluster compound Au8+CH3OH
M.Vogel, K.Hansen, A.Herlert, L.Schweikhard and C.Walther,
J.Chem.Phys. 116 (2002) 9658.            (.pdf)

Multisequential Photofragmentation of Size-Selected Gold Cluster Ions
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Phys.Rev. A 66 (2002) 033201.           (.pdf)

Dimer Dissociation Energies of Small Odd-size Clusters Aun+
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Eur.Phys.J. D 21 (2002) 163.            (.pdf)

Wie stabil sind Moleküle?
Manuel Vogel, Klavs Hansen, Lutz Schweikhard:
Physik in unserer Zeit 33 (2002) 254.          (.pdf)

Recent gold cluster studies in a Penning trap
L.Schweikhard, K.Hansen, A.Herlert, M.D.Herráiz Lablanca, G.Marx, M.Vogel,
Contribution to the EFTMS-6 proceedings.
J.Mass Spec. 219 (2002) 363.            (link to journal)

Fabrication of mesoscopic superconducting Nb wires using conventional electron-beam lithographic techniques
Nam Kim, Klavs Hansen, Jussi Toppari, Tarmo Suppula, and Jukka Pekola,
J.Vac.Sci.Technol. B 20 (2002) 386.      (link to journal)

Thermionic emission from clusters
J.U.Andersen, E.Bonderup and K.Hansen,
J.Phys. B 35 (2002) R1-R30.                (.pdf)
J.Phys.B © copyright (2003) IOP Publishing Ltd. http://www.iop.org.


Model-free determination of dissociation energies in polyatomic systems
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Phys.Rev.Lett. 87 (2001) 013401.       (.pdf)

On the concept of temperature for a small isolated system
J.U.Andersen, E.Bonderup and K.Hansen,
J.Chem.Phys. 114 (2001) 6518.       (.pdf)

Observation of 1/t decay law for hot clusters and molecules in a storage ring
K.Hansen, J.U.Andersen, P.Hvelplund, S.P.Møller, U.V.Pedersen and V.V.Petrunin,
Phys.Rev.Lett. 87 (2001) 123401.       (.pdf)
Energy Dependence of the Decay Pathways of Optically Excited Small Gold Clusters
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Appl.Phys. B 73 (2001) 411.       (.pdf)

Determination of dissociation energies by use of energy-dependent decay pathway branching ratios
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Chem.Phys.Lett. 346 (2001) 117.         (link to journal)

Characterization of Cooper pair boxes for quantum computing
J.J.Toppari, K.Hansen, N.Kim, M.T.Savolainen, L.Taskinen and J.P.Pekola,
Physica C 352 (1-4) (2001) 177         (link to journal)

Radiative cooling of fullerene anions in a storage ring
J.U.Andersen, C.Gottrup, K.Hansen, P.Hvelplund and M.O.Larsson,
Eur.Phys.J. D 17 (2001) 189.       (.pdf)

Formation and Fragmentation of Negative Metal Clusters
K.Hansen, J.U.Andersen, J.S.Forster, P.Hvelplund,
Phys.Rev. A 63 (2001) 023201.       (.pdf)

Decay pathways of small gold clusters - the competition between monomer and dimer evaporation
M.Vogel, K.Hansen, A.Herlert and L.Schweikhard,
Eur.Phys.J. D 16 (2001) 73.       (.pdf)

Characterization of Cooper pair boxes for quantum bits

M.T.Savolainen, J.J.Toppari, L.Taskinen, N.Kim, K.Hansen and J.P.Pekola,
Proceedings of 'Macroscopic Quantum Coherence2', Napoli, 2000:
Macroscopic Quantum Coherence and Quantum Computing,
D. Averin, B. Ruggiero and P. Silvestrini (eds.), Plenum Publishers, New York (2001) 145.

Adiabatic transport of Cooper pairs in arrays of Josephson junctions
J.P.Pekola, J.J.Toppari, N. Kim, M.T.Savolainen, L.Taskinen and K.Hansen,
Proceedings of 'Macroscopic Quantum Coherence2', Napoli, 2000:
Macroscopic Quantum Coherence and Quantum Computing,
D. Averin, B. Ruggiero and P. Silvestrini (eds.), Plenum Publishers, New York (2001) 127.


Multiply charged titanium cluster anions: Production and photodetachment
A.Herlert, K.Hansen, L.Schweikhard, M.Vogel,
Hyp.Int.127 (2000) 52        (link to journal)

From above threshold ionization to statistical electron emission: the laser pulse duration dependence of C60 photoelectron spectra
E.E.B. Campbell, K. Hansen, K. Hoffmann, G. Korn, M. Tchaplyguine, M. Wittmann, I.V. Hertel
Phys. Rev. Lett., 84 (2000) 2128-2131.       (.pdf)

Absolute separation energies for Na-clusters
J.Borggreen, K.Hansen, F.Chandezon, T.Døssing, M. Elhajal, O.Echt,
Phys.Rev. A 62 (2000) 013202.       (.pdf)

Determination of cluster binding energies on metal surfaces by statistics

Klavs Hansen,
Surf.Sci. 448 (2000) 305.         (link to journal)


Radiative Cooling of a Small Metal Cluster: The Case of V13+
C.Walther, G.Dietrich, W.Dostal, K.Hansen, S.Krückeberg, K.Lützenkirchen and L.Schweikhard,
Phys.Rev.Lett., 83 (1999) 381.       (.pdf)

Thermionic emission laser spectroscopy of stored C60-
K.Hansen, J.U.Andersen, H.Cederquist, C.Gottrup, P.Hvelplund, M.O.Larsson, V.V.Petrunin, H.T.Schmidt,
Eur.Phys.J. D 9 (1999) 351.       (.pdf)

Reply to Comment by Stampfli and Märk
K.Hansen and O.Echt,
Phys.Rev.Lett. 82 (1999) 460.       (.pdf)

Evaporation rates for Na-clusters
J.Borggreen, F.Chandezon, O.Echt, H.Grimley, K.Hansen, P.M.Hansen, C.Ristori,
Eur.Phys.J. D 9 (1999) 119.       (.pdf)

Comment on "Photofragmentation of C
60 in seeded supersonic molecular beams: effects of ro-vibrational cooling" by Biasioli et al.
K. Hansen, R. Muller, E.E.B. Campbell 
Chem. Phys. Lett., 301, (1999) 105-108.         (link to journal)

Clusters in Storage Rings
P.Hvelplund, J.U.Andersen and K.Hansen,
Proceedings of Trapped Charged Particles and Fundamental Physics
D. H. E. Dubin, D. Schneider, editors, AIP Conference Proceedings 457, (1999) 220.

Measuring Cluster Temperatures via Kinetic Energy Release

Peter Brockhaus, Kin Wong, Klavs Hansen, Vitaly Kasperovich, George Tikhonov and Vitaly V. Kresin:
Phys.Rev. A 59 (1999) 495.       (.pdf)

Evaporation and Cluster Abundance Spectra
K.Hansen and U.Näher:
Phys.Rev. A 60 (1999) 1240.       (.pdf)

Statistical Emission Processes of Clusters
Philos.Mag. B 79 (1999) 1413.         (link to journal)


Probing energy and time scales by thermionic emission

Klavs Hansen,
Proceedings of 'Similarities and Differences Between Atomic Nuclei and Clusters', Tsukuba, Japan, july 1997,
Y.Abe, I.Arai, S.M.Lee, K.Yabana, Eds.,  AIP Conf. Proc. 416, New York, 1998.

Penning ionization of C60 and C70
J.M.Weber, K.Hansen, M.-W.Ruf and H.Hotop,
Chem.Phys. 239 (1998) 271.        (link to journal)

Thermal radiation from small particles

K. Hansen, E.E.B. Campbell
Phys.Rev. E 58, (1998) 5477-5482.      (.pdf)


Thermionic Emission and Fragmentation of C60
K.Hansen and O.Echt,
Phys.Rev.Lett. 78 (1997) 2337.       (.pdf)

Stability of Carbon Clusters CN for 46 < < 102
P.E.Barran, S.Firth, A.J.Stace, H.W.Kroto, K.Hansen and E.E.B.Campbell,
Int.J.Mass Spec. and Ion Processes 167-168 (1997) 127.         (link to journal)

Resonant two-photon ionisation spectroscopy of C60
K.Hansen, R.Müller, P.Brockhaus, E.E.B.Campbell and I.V.Hertel,
Z.Phys. D 42 (1997) 153.       (.pdf)

Electronic shell energies and deformations in large sodium clusters from evaporation spectra
F.Chandezon, S.Bjørnholm, J.Borggreen and K.Hansen,
Phys.Rev. B 55 (1997) 5485.       (.pdf)

Stability of Clusters of Fullerenes
K.Hansen, H.Hohmann, R.Müller and E.E.B.Campbell,
Z.Phys. D 40 (1997) 361.       (.pdf)


Radiative Cooling of Fullerenes

K.Hansen and E.E.B.Campbell,
J.Chem.Phys. 104 (1996) 5012.       (.pdf)

From Abundance Spectra to Cluster Energies

Surface Review and Letters 3 (1996) 597.

Icosahedra of Icosahedra: The stability of (C60)13
K.Hansen, H.Hohmann, R.Müller and E.E.B.Campbell,
J.Chem.Phys. 105 (1996) 6088.       (.pdf)

Experimental Studies of Fusion and Fragmentation of Fullerenes
F.Rohmund, A.V.Glotov, K.Hansen and E.E.B.Campbell,
J.Phys. B 29 (1996) 5143.       (.pdf)
J.Phys.B © copyright (2003) IOP Publishing Ltd. http://www.iop.org.


Kinetic Energy Release During Evaporation from Large Sodium Clusters

K.Hansen and J.Falk,
Z.Phys. D 34 (1995) 251.

A hollow-cathode plasma sputter source for production of metal cluster beams
M.B.Nielsen, J.Borggreen, K.Hansen, J.Pedersen, B.Holst, M.Krogh, H.D.Rasmussen, E.Søndergård and A.Xenoulis,
Proceedings of the Second International Conference on Atomic and Nuclear Clusters, Santorini, Greece 1993
(G.S.Anagnostatos, W.von Oertzen, eds.), Springer Verlag, Berlin (1995) 258.


Electronic degrees of freedom and unimolecular rate constants in metal clusters
K.Hansen and M.Manninen,
J.Chem.Phys. 101 (1994) 10481.       (.pdf)

Temperature of Large Clusters
U.Näher and K.Hansen,
J.Chem.Phys. 101 (1994) 5367.       (.pdf)

A simple rate equation for fullerene coalescence
K.Hansen, C.Yeretzian, R.L.Whetten:,
Chem.Phys.Lett. 218 (1994) 462.         (link to journal)

Modified Nilsson model for large sodium clusters
S.M.Reimann, M.Brack and K.Hansen,
Z.Phys. D 28 (1993) 235.

Electronic shells and supershells in metal clusters
S.Bjørnholm, J.Borggreen, K.Hansen and J.Pedersen,
Perspectives of Many Particle Physics, Proc. Int. School of Physics 'Enrico Fermi'
R.A.Broglia, J.R.Schrieffer and R.P.Bortignon (eds.), Varenna, Italy;
North Holland, Elsevier Science Publ. Amsterdam (1994) 279.


Picosecond resonant two-photon ionization of cold sodium clusters
K.Hansen, J.T.Khoury, M.L.Homer, F.E.Livingston and R.L.Whetten,
Z.Phys. D 26 (1993) 187.

Rates of electron emission from negatively charged, impact-heated fullerenes
C.Yeretzian, K.Hansen  and R.L.Whetten,
Science 260 (1993) 652.

Surface scattering of C60+ and yield of C60
C.Yeretzian, K.Hansen, R.D.Beck and R.L.Whetten,
J.Chem.Phys. 98 (1993) 7480.       (.pdf)

Coalescence reactions of fullerenes
C.Yeretzian, K.Hansen, F.Diederich and R.L.Whetten,
Z.Phys. D 26 (1993) S300.


Time-resolved degenerate four-wave mixing in thin films of C60 and C70 using femtosecond optical pulses
M.J.Rosker, H.O.Marcy, T.Y.Chang, J.T.Khoury, K.Hansen and R.L.Whetten,
Chem.Phys.Lett. 196 (1992) 427.         (link to journal)

Coalescence reactions of fullerenes
C.Yeretzian, K.Hansen, F.Diederich and R.L.Whetten,
Nature 359 (1992) 44.

Natriumklyngers periodiske system
Dansk Kemi 73 (2) (1992) 12-15.

Collisional probes and possible structures of La2C80
C.Yeretzian, K.Hansen, M.M.Alvarez, K.S.Min, E.G.Gillan, K.Holczer, R.B.Kaner and R.L.Whetten,
Chem.Phys.Lett. 196 (1992) 337.         (link to journal)

Shell structure in nuclei and in metal clusters
S.Bjørnholm, J.Borggreen, K.Hansen, T.P.Martin, J.Pedersen and H.D.Rasmussen,
Proceedings of the International Conference on "Clustering Phenomena in Atoms and Nuclei''
M. Brenner, T. Lønnroth and F.B. Malik, (eds.), Turku, Finland, Springer Verlag, Berlin (1992) 3.

Supershells in laser-warmed Na-clusters
T.P.Martin, S.Bjørnholm, J.Borggreen, C.Brechignac, Ph.Cahuzac, K.Hansen and J.Pedersen,
Proceedings of the 88th WE-Heraeus-Seminar, R.Schmidt, H.O.Lutz and R.Dreizler, (eds.), Bad Honnef, Germany; 
Springer-Verlag, Berlin, 46.


Experiments with shell structure in metal clusters
S.Bjørnholm, J.Borggreen, K.Hansen, T.P.Martin, J.Pedersen and H.D.Rasmussen,
Cours de l'Ecole Joliot-Curie, Maubuisson.
IN2P3, France. Editions de Physique, Paris (1991) 311.

Electronic shell structure of laser-warmed Na-clusters
T.P.Martin, S.Bjørnholm, J.Borggreen, C.Brechignac, Ph.Cahuzac, K.Hansen and J.Pedersen,
Chem.Phys.Lett. 186 (1991) 53.         (link to journal)

Observation of quantum supershells in clusters of sodium atoms
J.Pedersen, S.Bjørnholm, J.Borggreen, K.Hansen, T.P.Martin and H.D.Rasmussen:
Nature 353 (1991) 733.

Thermal properties of the valence electrons in alkali metal clusters

M.Brack, O.Genzken and K.Hansen,
Z.Phys. D 21 (1991) 65.

Thermal electronic properties of alkali clusters

M.Brack, O.Genzken and K.Hansen,
Z.Phys. D 19 (1991) 51.

The influence of shells, electron thermodynamics, and evaporation on the abundance spectra of large sodium clusters
S.Bjørnholm, J.Borggreen, O.Echt, K.Hansen, J.Pedersen and H.D.Rasmussen
Z.Phys. D 19 (1991) 47.

Superskaller i metalklynger
KVANT 2 (3) (1991) 22-25.


Supershells in metal clusters
H.Nishioka, K.Hansen and B.R.Mottelson,
Phys.Rev. B 42 (1990) 9377.       (.pdf)

Mean field quantization of several hundred electrons in sodium metal clusters.
S.Bjørnholm, J.Borggreen, O.Echt, K.Hansen, J.Pedersen, and H.D.Rasmussen
Phys.Rev.Lett.65 (1990) 1627.       (.pdf)


Fysisk Tidsskrift 85 (1987) 179-186.

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