Prof. Pascale Deen.

Pascale Deen

Head of the Spectroscopy Division.
Affiliate Professor: Solid State Physics and Neutron Scattering. Niels Bohr Institute, University of Copenhagen

Research Activities

  • Neutron instrumentation focussed on neutron spectroscopy. Neutron Polarisation Analysis. 
  • Dynamics of frustrated magnetic order.  
  • Quantum magnetism
  • Spin glasses and disorder.  
  • Heavy fermion behaviour.

Selected Publications

10 representative articles

1. An Overview of the Director State in Gadolinium Gallate Garnet

P.P.Deen

Frontiers in Physics: 10, 868339 (2022) https://doi.org/10.3389/fphy.2022.868339

2. CSPEC: The cold chopper spectrometer of the ESS, a detailed overview prior to commissioning PP Deen, S Longeville, G Fabreges, W Lohstroh, L Loaiza, F Moreira, D. Noferini.
Review of Scientific Instruments 92, 105104; https://doi.org/10.1063/5.0059907 (2021)

3. Effects of uniaxial pressure on the spin ice Ho2Ti2O7
R. Edberg , I. M. B. Bakke, H. Kondo, L. Ørduk Sandberg, M. L. Haubro , M. Guthrie , A. T.

Holmes, J. Engqvist, A. Wildes, K. Matsuhira , K. Lefmann , P. P. Deen, M. Mito, and P. Henelius Phys. Rev. B 102, 184408 (2020)

4. Dipolar spin ice under uniaxial pressure R. Edberg, L. Ørduk Sandberg, I. M. Bergh Bakke, M. L. Haubro, L. C. Folkers, L. Mangin-Thro, A. Wildes, O. Zaharko, M. Guthrie, A. T. Holmes, M. H. Sørby, K. Lefmann, P. P. Deen, and P. Henelius.
Phys. Rev. B 100, 144436, (2019)

5. Absence of magnetic ordering and field-induced phase diagram in the gadolinium aluminum garnet
O. Florea, E. Lhotel, H. Jacobsen, C. S. Knee, and P. P. Deen
Phys. Rev. B 96, 220413(R) (2017)

6. Dispersionless spin waves in Gadolinium Gallium Garnet N. d'Ambrumenil, OA Petrenko, H Mutka, PP Deen
Phys. Rev. Lett. 114, 227203 (2015)

7. Hidden order in spin-liquid Gd3Ga5O12
Joseph A. M. Paddison, Henrik Jacobsen, Oleg A. Petrenko, Maria Teresa Fernández-Díaz, Pascale P. Deen, Andrew L. Goodwin
Science 09 Oct 2015: Vol. 350, Issue 6257, pp. 179-181

8. Choppers to optimise the repetition rate multiplication technique on a direct geometry neutron chopper spectrometer
A Vickery, PP Deen
Review of Scientific Instruments 85 (11), 115103 (2014)

8. Pair correlations, short-range order, and dispersive excitations in the quasi-kagome quantum magnet volborthite
GJ Nilsen, FC Coomer, MA de Vries, JR Stewart, PP Deen, A Harrison, HM Rønnow

Physical Review B 84 (17), 172401 (2011)

9. Disordered materials studied using neutron polarization analysis on the multidetector spectrometer, D7
J.R. Stewart, P. P. Deen, K. H. Andersen, H. Schober, J.-F Barthelemy, J.M.Hillier, A.P.Murani, T.Hayes and B.Lindenau.

J. Appl. Cryst. (2009). 42, 69-84, (2009)

10. Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7
T. Fennell, P. P. Deen, A. R. Wildes, K. Schmalzl, D. Prabhakaran, A. T. Boothroyd, R. J. Aldus, D. F. McMorrow, and S. T. Bramwell
Science; 10.1126/science.1177582 (2009)

Career History

Current and Previous Appointments:

2024 - date   Division Head for Spectroscopy, European Spallation Source.                                                                                                                                       

2024 - date   Affilliate Professor: Solid State Physics and Neutron Scattering.  Niels Bohr Institute, University of Copenhagen
 

2021 - 2024  Senior Scientist for Spectroscopy, European Spallation Source.
2011 - 2021   Scientist for Spectroscopy, European Spallation Source.
2012 - date   Adjunct Associate Professor, Niels Bohr Institute, University of Copenhagen
2006 - 2011   Instrument Scientist, Institut Laue Langevin, Grenoble, France.
2003 - 2006   Post-doctoral Fellow, European Synchrotron Radiation Facility, Grenoble, France: High pressure techniques for Resonant x-ray magnetic scattering in strongly correlated magnetism.

Ph.D. in Condensed Matter Physics. University of Liverpool, 1999 - 2003: Ph.D. thesis advisor: Prof. J. P. Goff Ph.D. thesis title: Exchange coupling and superconductivity in light rare earth alloys and superlattices