Flipper 2010

International Workshop on Single-Crystal Diffraction with Polarised Neutrons

26 - 30 January, 2010

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Past events

Flipper2010 - Workshop Programme

Tuesday, January 26, 2010

18:00-21:00

Registration in the ILL foyer

19:00-21:00

Buffet in the ILL19/ILL20 liaison hallway

Wednesday, January 27, 2010

08:30

Registration in the ILL foyer

09:00

Welcome
Andrew Harrison - Institut Laue-Langevin

09:15

Practical information
Anne Stunault

Session 1- Polarised Neutron Diffractometry: Setting the Scene - Chairperson : Louis-Pierre Regnault

09:20

Theory of polarised neutron diffraction and spherical neutron polarimetry
Jane Brown - Institut Laue-Langevin & University of Loughborough (Invited)

09:50

Modern trends in polarised neutron diffraction
Arsen Gukasov - Laboratoire Léon Brillouin, CEA-Saclay (Invited)

10:20

PND data analysis: magnetisation densities and magnetic form factors determination
Béatrice Gillon - Laboratoire Léon Brillouin, CEA-Saclay (Invited)

10:50-11:20

Coffee break

Session 2 - Multiferroics I - Chairperson : Kazuhisa Kakurai

11:20

Neutron scattering studies of RMn2O5 multiferroics
Laurent Chapon - ISIS Facility, Rutherford Appleton Laboratory (Invited)

11:50

Polarised and nonpolarised neutron diffraction on novel multiferroic FeTe2O5
Oksana Zaharko - ETH Zürich & Paul Scherrer Institute (Invited)

12:15

Three-dimensional magnetic correlations in multiferroic LuFe2O4
Karol Marty - Oak Ridge National Laboratory

12:35-13:30

Lunch

Session 3 - Smart Materials - Chairperson : Jane Brown

14:00

Ferromagnetic shape memory alloys
Klaus Neumann - University of Loughborough (Invited)

14:25

Crystal handedness and spin chirality of transition metal monosilicides
Sergey Grigoriev - Petersburg Nuclear Physics Institute (Invited)

14:50

Magnetisation density in Co3V2O8: polarized neutron diffraction and magnetic Compton scattering
Navid Qureshi - University of Cologne (Invited)

15:15-16:15

Coffee Break and Posters

Session 4 - Multiferroics II - Chairperson : Laurent Chapon

16:15

Probing chirality in multiferroics using polarised neutrons and X-rays
Dimitri Argyriou - Helmholtz-Zentrum Berlin für Materialien und Energie (Invited)

16:40

Magnetisation density in multiferroic TbMnO3
Joost de Groot - Forschungszentrum Jülich GmbH (Invited)

17:05

What neutron can't tell: examples from the X-rays investigations of multiferroics and frustrated magnets
Alessandro Bombardi - Diamond Light Source Ltd (Invited)

Tour of the polarised-neutron instruments and laboratories


Thursday, January 28, 2010

Session 5 - Frustrated Systems - Chairperson : Werner Schweika

09:00

Local susceptibility in rare-earth pyrochlores as seen by polarized neutrons
Isabelle Mirebeau - Laboratoire Léon Brillouin, CEA-Saclay (Invited)

09:30

The use of polarised neutrons in the study of Fe langasite frustrated magnets
Virginie Simonet - Institute Néel, CNRS Grenoble & Université Joseph Fourier (Invited)

09:55

Magnetism in Er2Ti2O7 and MnWO4 revealed by neutron polarimetry
Amy Poole - University College London (Invited)

10:20

Coulomb phases in the spin ices Ho2Ti2O7 and Dy2Ti2O7
Tom Fennell - Institut Laue-Langevin

10:40-11:10

Coffee break

Session 6 - Rare Earths and Actinides - Chairperson : Arno Hiess

11:10

Using polarised neutrons and X-rays to solve the quadrupolar structures of UPd3
Keith McEwen - University College London (Invited)

11:40

Magnetic form factors and crystal field in rare-earth systems
Rafik Ballou - Institut Néel, CNRS Grenoble (Invited)

12:05

Neutron spin polarization study on unusual magnetic structures in Np compounds
Naoto Metoki - Japan Atomic Energy Agency (Invited)

12:30-13:30

Lunch

Session 7 - The legacy of Francis Tasset - Chairperson : Jacques Schweizer

14:00

Polarised neutron diffraction in Japan - past, present and future
Kazuhisa Kakurai - Japan Atomic Energy Agency (Invited)

14:25

Single magnetic chirality in the magneto-electric NdFe3(11BO3)4
Marc Janoschek - University of California, La Jolla (Invited)

14:50

The new single crystal polarised neutron diffractometer POLI-HEIDI at FRM2
Vladimir Hutanu - Aachen University, Outstation at FRM II (Invited)

15:15

Setting the stage in a theatre of spin
Andrew Wills - University College London & London Centre of Nanotechnology (Invited)

15:40-16:25

Coffee break and Posters

Session 8 - Future developments and emerging science - Chairperson : Christian Vettier

16:30

Laue diffraction with polarised neutrons
Christina Hoffmann - Oak Ridge National Laboratory (Invited)

16:55

Structural crystallography on crystals containing polarised protons
Maths Karlsson - ESS-Scandinavia & University of Lund (Invited)

17:20

Neutron Larmor diffraction measurement of the temperature dependence of lattice constants in the spin-Peierls compound CuGeO3
Nicolas Martin - CEA Grenoble

17:40

XYZ-polarisation analysis of diffuse magnetic neutron scattering from single crystals
Werner Schweika - Forschungszentrum Jülich

18:00

Polarized neutron diffraction study of Fe16N2 thin films
Masayasu Takeda - Japan Atomic Energy Agency

19:00

Bus to Workshop Dinner

20:00-23:00

Workshop Dinner at Auberge de Malatras, Tullins


Friday, January 29, 2010

Session 9 - Multiferroics III - Chair : Juan Rodríguez-Carvajal

09:00

Polarized neutron scattering studies of multiferroic Ni3V2O8 in an electric field
Ivelisse Cabrera - Johns Hopkins University (Invited)

09:25

Cycloidal spin density wave Ni3V2O8 studied using circularly polarised magnetic X-ray scattering
Federica Fabrizi - European Synchrotron Radiation Facility (Invited)

09:50

Relation between helimagnetic structure and electric polarisation in Y-type hexaferrite Ba2Mg2Fe12O22
Shintaro Ishiwata - Cross-Correlated Materials Research Group, RIKEN (Invited)

10:15

Neutron diffraction investigations of BiFeO3 thin films
William Ratcliff - NIST Center for Neutron Research

10:35-11:05

Coffee break

Session 10 - Superconductors - Chairperson : Timothy Ziman

11:05

Spin pairing in unconventional superconductors
Stephen Hayden - University of Bristol (Invited)

11:35

Novel magnetic order in high-TC copper oxide superconductors
Philippe Bourges - Laboratoire Léon Brillouin, CEA-Saclay (Invited)

12:05

Magnetic order in a charge-ordered cuprate
Andrew Boothroyd - University of Oxford (Invited)

12:35-13:30

Lunch

Session 11 - Molecular magnetism I - Chairperson : Béatrice Gillon

14:00

Polarized neutrons and molecular magnetism
Dante Gatteschi - University of Florence (Invited)

14:25

Spin densities in molecular clusters
Alberto Rodríguez-Velamazán - Materials Science Institute of Aragón (CSIC-University of Zaragoza) (Invited)

14:50

Understanding magnetic interaction mechanisms in molecule based magnets: spin densities studies
Javier Campo - Materials Science Institute of Aragón (CSIC-University of Zaragoza)

15:10-15:30

Coffee break

Session 12 - Molecular magnetism II - Chairperson : Dante Gatteschi

15:30

Photo-switchable molecular magnets
Valérie Marvaud - University Pierre & Marie Curie, Paris (Invited)

15:55

Modelling of molecular magnets
Javier Luzón - University of Florence & INSTM (Invited)


16:20

Concluding remarks
Christian Vettier - ESS-Scandinavia & University of Lund

16:35-17:45

Wine and cheese


 

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Poster Presentations

Presenting authors and their affiliations are in bold.

Magnetic order in La1.48Nd0.40Sr0.12CuO4: a combined polarised and unpolarised neutron diffraction study
N.B. Christensen (Risø DTU), R.A. Ewings, H.M. Rønnow, S. Gvasaliya, J. Mesot, N. Momono, M. Oda, M. Ido, M. Enderle, D.F. McMorrow and A.T. Boothroyd

Effect of the spin reorientation on the spin density map in HoCo4Si
C.V. Colin (Institute Néel, CNRS Grenoble & Université Joseph Fourier), R. Haettel, O. Isnard, B. Grenier, G. Nénert and A. Stunault

Polarized neutron diffraction and a bit more: the wide angle spin-echo spectrometer project WASP at the ILL
P. Fouquet (Institut Laue-Langevin), K. Andersen, P. Bentley, P. Falus, B. Farago, M. Maccarini, G. Pastrello, I. Sutton, E. Thaveron, F. Thomas, E. Moskvin and C. Pappas

Charge transfer or spin transition mechanism in photoswitchable molecular compound MoCu2?
A. Hammerschmied (Technische Universität Wien), J. Long, V. Marvaud and B. Gillon

Polarised neutrons in McStas
E. Knudsen (Risø DTU), L. Udby and P. Willendrup

Magnetic moment distribution in non stoichiometric NiMnGa ferromagnetic shape memory alloys
P. Lázpita (University of the Basque Country), J. Feuchtwanger, J.M. Barandiarán, J. Gutiérrez, I. Rodríguez, A. Stunault and C. Mondelli

Peculiar magnetic diffuse scattering in antiferroquadrupolar system RB2C2
K. Kaneko (Japan Atomic Energy Agency), K. Ohoyama, K. Tsutsumi, E. Matsuoka, M. Takeda and K. Kakurai

Spin polarization distribution in the iron langasites
M. Loire (Institute Néel, CNRS Grenoble & Université Joseph Fourier), R. Ballou, V. Simonet, E. Ressouche and A. Stunault

Experimental spin densities by Laue diffraction at a continuous neutron source
G.J. McIntyre (Institut Laue-Langevin), M. Karlsson, K.H. Andersen and E. Lelièvre-Berna

Towards understanding the canonical spin glass; Cu-Mn
A.P. Murani (Institut Laue Langevin), S.J. Kennedy, P. Courtois and B. Mestrallet

"Forbidden" magnetic reflections in UNiGa studied by (polarized) neutron diffraction and synchrotron scattering
K. Prokes (Helmholtz-Zentrum Berlin), V. Sechovsky, M. Mihalik, R. Feyerherm and E. Dudzik

Magnetic domains switching by combined magnetic and electric fields in MnPS3
E. Ressouche (CEA-Grenoble), M. Loire, V. Simonet, A. Stunault and A. Wildes

Multipolar flipping ratio refinement with FullProf
J. Rodríguez-Carvajal (Institut Laue-Langevin), C. Frontera, J.A. Rodríguez-Velamazán and J. Campo

Polarized neutron diffraction study of Co-olivine
A. Sazonov (FRM II, Technische Universität Munich), V. Hutanu, G. Heger and A. Gukasov

Joint charge and spin density refinement
M. Souhassou (Université Henri Poincaré, Nancy), M. Deutsch, S. Pillet, N. Claiser, C. Lecomte, J.M. Gillet, Y. Ciumakov, P. Becker, P. Cortona, B. Gillon, A. Cousson, D. Luneau, A. Borta, G. Pilet, E. Jeanneau and V. Druta

The structure of liquid water by polarized neutron diffraction and reverse Monte Carlo modelling
L. Temleitner, L. Pusztai and W. Schweika (Forschungszentrum Jülich)

Can noise enhance coherent oscillations associated with a spin-flip?
R.S. Whitney (Institut Laue-Langevin) and T. Ziman

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