The Diffraction Group (DIF)

Neutron diffraction is a powerful and often unique tool for studying the structure of materials used in everyday life.

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Thomas Hansen

The DIF Group's people


Thomas C. Hansen

Instrument Scientist (D20)

e-mail:

hansen(at)ill.eu

Room:

138-ILL4

Phone:

+33 (0)4 76 20 7044

FAX:

+33 (0)4 76 20 7648

Instr. phone:

+33 (0)4 76 20 7386


Research interests

  • Solid state chemistry of oxides: structure, phase transitions and chemical kinetics, high temperature synthesis
  • Structure, phase transitions and kinetics of crystalline ice phases and gas-hydrates
  • Powder diffraction: peak shapes, parametric diffraction, ab initio structure solution
  • Monte-Carlo simulation of neutron instrumentation
  • Position sensitive detectors: microstrip gas chamber detectors


Recent publications (from over 100 refereed published papers)

2009-2010

Tonus et al. In situ neutron diffraction study of the high-temperature redox chemistry of Ln(3-x)Sr(1+x)CrNiO(8-delta) (Ln = La, Nd) under hydrogen. Journal Of Materials Chemistry (2010) vol. 20 (20) pp. 4103-4115


Lelievre-Berna et al. Powder diffraction with spin polarized neutrons. Measurement Science and Technology (2010) vol. 21 (5) pp. 055106


Chatterji et al. The magnetoelastic effect in CoF2 investigated by means of neutron powder diffraction. Journal of Physics: Condensed Matter (2010) vol. 22 (9) pp. 096001


Chatterji et al. Magnetoelastic effect in MF2 (M = Mn, Fe, Ni) investigated by neutron powder diffraction. Journal of Physics: Condensed Matter (2010) vol. 22 (31) pp. 316001


Dolci et al. In-situ neutron diffraction study of magnesium amide/lithium hydride stoichiometric mixtures with lithium hydride excess. International Journal Of Hydrogen Energy (2010) vol. 35 (11) pp. 5448-5453


Sazonov et al. Anomalous thermal expansion of cobalt olivine, Co2SiO4, at low temperatures. Journal of Applied Crystallography (2010) vol. 43 pp. 720-728


Turrillas et al. The thermal explosion synthesis of AlNi monitored by neutron thermodiffractometry. Acta Materialia (2010) vol. 58 (7) pp. 2769-2777


Marcinkova et al. Superconductivity in NdFe1-xCoxAsO (0.05 < x < 0.20) and rare-earth magnetic ordering in NdCoAsO. Physical Review B (2010) vol. 81 (6) pp. 064511


Xiao et al. Neutron diffraction study of phase transitions and thermal expansion of SrFeAsF. Physical Review B (2010) vol. 81 (9) pp. 094523


Bossy et al. Amorphous solid helium in porous media. Physical Review B (2010) vol. 81 (18) pp. 184507


Klotz et al. Magnetic Ordering in Solid Oxygen up to Room Temperature. Physical Review Letters (2010) vol. 104 (11) pp. 115501


Koza et al. Kinetic Properties of Transformations Between Different Amorphous Ice Structures Universality of the Formfactor Evolution as Studied by Neutron Wide Angle and Small Angle Scattering Experiments. Springer Series in Solid-State Sciences: Studying Kinetics With Neutrons: Prospects For Times-Resolved Neutron Scattering (2010) vol. 161 pp. 77-99


Riley et al. Applications of In Situ Neutron Diffraction to Optimisation of Novel Materials Synthesis. Springer Series in Solid-State Sciences: Studying Kinetics With Neutrons: Prospects For Times-Resolved Neutron Scattering (2010) vol. 161 pp. 123-148


Klotz et al. The preparation and structure of salty ice VII under pressure. Nature Materials (2009) vol. 8 (5) pp. 405-409


Kimber et al. Similarities between structural distortions under pressure and chemical doping in superconducting BaFe2As2. Nature Materials (2009) vol. 8 (6) pp. 471-475


Watson et al. In Situ Characterization of a Nb and Mo Containing gamma-TiAl Based Alloy Using Neutron Diffraction and High-Temperature Microscopy. Advanced Engineering Materials (2009) vol. 11 (11) pp. 932-937


Fedotov et al. Solid-state amorphization of a quenched high-pressure GaSb phase studied by real-time neutron diffraction: evolution of the crystalline phase. Journal of Physics: Condensed Matter (2009) vol. 21 (4) pp. 045402


Senyshyn et al. Anomalous thermal expansion in rare-earth gallium perovskites: a comprehensive powder diffraction study. Journal of Physics: Condensed Matter (2009) vol. 21 (14) pp. 145405


Maynard et al. High-pressure crystallography of methane: a low-temperature neutron diffraction study in the 1-5GPa range. High Pressure Research (2009) vol. 29 (1) pp. 125-128


Sazonov et al. Magnetic behaviour of synthetic Co2SiO4. Acta Crystallographica, Section B: Structural Science (2009) vol. 65 pp. 664-675


Xiao et al. Magnetic order in the CaFe1-xCoxAsF (x=0.00,0.06,0.12) superconducting compounds. Physical Review B (2009) vol. 79 (6) pp. 060504


Holland-Moritz et al. Structure and dynamics of liquid Ni36Zr64 studied by neutron scattering. Physical Review B (2009) vol. 79 (6) pp. 064204


Qureshi et al. Experimental magnetic form factors in Co3V2O8: A combined study of ab initio calculations, magnetic Compton scattering, and polarized neutron diffraction. Physical Review B (2009) vol. 79 (9) pp. 094417


Landsgesell et al. Structural tuning of magnetism in the orthorhombic perovskite Nd1-xYxMnO3: Evidence for magnetic phase separation. Physical Review B (2009) vol. 80 (1) pp. 014412


Chatterji et al. Negative thermal expansion of ReO3 in the extended temperature range. Applied Physics Letters (2009) vol. 94 (24) pp. 241902


Weidner et al. Hydrogenation Reaction Pathway in Li2Mg(NH)(2). Journal Of Physical Chemistry C (2009) vol. 113 (35) pp. 15772-15777


Kohlmann et al. In situ Neutron Powder Diffraction on Intermediate Hydrides of MgPd3 in a Novel Sapphire Gas Pressure Cell. Zeitschrift Fur Anorganische Und Allgemeine Chemie (2009) vol. 635 (15) pp. 2399-2405

2006-2008

T. C. Hansen, M. M. Koza, and W. F. Kuhs: "Formation and annealing of cubic ice: I. Modelling of stacking faults", J Phys-Condens Mat, 20 (2008) 285104.

T. C. Hansen, M. M. Koza, P. Lindner, and W. F. Kuhs: "Formation and annealing of cubic ice: II. Kinetic study", J Phys-Condens Mat, 20 (2008) 258105.

T. C. Hansen, P. F. Henry, H. E. Fischer, J. Torregrossa, and P. Convert: "The D20 instrument at the ILL: a versatile high-intensity two-axis neutron diffractometer", Meas Sci Technol, 19 (2008) 034001.

T.C. Hansen, A. Falenty, and W.F. Kuhs: “Modelling ice Ic of different origin and stacking-faulted hexagonal ice using neutron powder diffraction data”, in ‘Physics and Chemistry of Ice’, ed. W.F. Kuhs, The Royal Society of Chemistry, Cambridge, 311 (2007) 201-8.

W.F. Kuhs and T.C. Hansen: "Time-resolved neutron diffraction studies with emphasis on water ices and gas hydrates", Neutron Scattering in Earth Sciences, 63 (2006) 171-204.

M.M. Koza, T. Hansen, R.P. May, and H. Schober: "Link between the diversity, heterogeneity and kinetic properties of amorphous ice structures", Journal of Non-Crystalline Solids, 352 (2006) 4988-93.

J. Seyed-Yazdi, H. Farman, J. C. Dore, J. B. W. Webber, G. H. Findenegg, and T. C. Hansen: "Structural characteriza-tion of water and ice in mesoporous SBA-15 silicas: II. The 'almost-filled' case for 86 angstrom pore diameter", J Phys-Condens Mat, 20 (2008) 205107.

D. P. Riley, E. H. Kisi, and T. C. Hansen: "Self-Propagating High-Temperature Synthesis of Ti3SiC2: II. Kinetics of Ultra-High-Speed Reactions from In Situ Neutron Diffraction", J Am Ceram Soc, 91 (2008) 3207-10.

M. J. Mas-Guindal, X. Turrillas, T. C. Hansen, and M. A. Rodriguez: "Time-resolved neutron diffraction study of Ti-TiC-Al2O3 composites obtained by SHS", J Eur Ceram Soc, 28 (2008) 2975-82.

J. Feuchtwanger, P. Lazpita, N. Vidal, J. M. Barandiaran, J. Gutierrez, T. C. Hansen, M. Peel, C. Mondelli, R. C. O'Handley, and S. M. Allen: "Rearrangement of twin variants in ferromagnetic shape memory alloy-polyurethane com-posites studied by stroboscopic neutron diffraction", J Phys-Condens Mat, 20 (2008) 104247.

T. Voigtmann, A. Meyer, D. Holland-Moritz, S. Stueber, T. C. Hansen, and T. Unruh: "Atomic diffusion mechanisms in a binary metallic melt", Epl-Europhys Lett, 82 (2008) 66001.

S. A. J. Kimber, D. N. Argyriou, F. Yokaichiya, K. Habicht, S. Gerischer, T. C. Hansen, T. Chatterji, R. Klingeler, C. Hess, G. Behr, A. Kondrat, and B. Buechner: "Magnetic ordering and negative thermal expansion in PrFeAsO", Phys. Rev. B, 78 (2008) 140503.

N. Qureshi, H. Fuess, H. Ehrenberg, B. Ouladdiaf, J. Rodriguez-Carvajal, T. C. Hansen, T. Wolf, C. Meingast, Q. Zhang, W. Knafo, and H. Von Loehneysen: "Magnetic structure of the kagome mixed compound (Co0.5Ni0.5)(3)V2O8", J Phys-Condens Mat, 20 (2008) 235228.

N. Qureshi, H. Fuess, H. Ehrenberg, T. C. Hansen, C. Ritter, P. Adelmann, C. Meingast, T. Wolf, Q. Zhang, and W. Knafo: "The magnetic composition-temperature phase diagram of the kagome mixed system (CoxNi1-x)3V2O8", J Phys-Condens Mat, 20 (2008) 095219.

N. Qureshi, H. Fuess, H. Ehrenberg, T.C. Hansen, and D. Schwabe: "Magnetic phase transitions and structures of Co3V2O8", Solid State Communications, 142 (2007) 169-72.

N. Qureshi, H. Fuess, H. Ehrenberg, T.C. Hansen, C. Ritter, K. Prokes, A. Podlesnyak, and D. Schwabe: "Magnetic proper-ties of the Kagome mixed compounds (CoxNi1-x)(3)V2O8", Physical Review B, 74 (2006) -.

H. Maynard, J. Loveday, S. Klotz, and C. Hansen: "High-pressure crystallography of methane — a low - temperature neutron diffraction study in the 1-5 GPa range", High Pressure Research (2008) 7.

S. Klotz, G. Steinle-Neumann, Th. Strässle, J. Philippe, Th. Hansen, and M. J. Wenzel, “Magnetism and the Verwey transi-tion in Fe3O4 under pressure”, Phys. Rev. B, 77 (2008) 12411.

 

2005-2006

  • V. K. Fedotov, V. E. Antonov, I. O. Bashkin, T. Hansen, and I. Natkaniec
    "Displacive ordering in the hydrogen sublattice of yttrium trihydride"
    Journal of Physics Condensed Matter 18 (2006) 1593-99.
  • H. Ehrenberg, E. Muessig, K. G. Bramnik, P. Kampe, and T. Hansen
    "Preparation and properties of sodium iron orthooxomolybdates, NaxFey(MoO4)z"
    Solid State Sciences 8 (2006) 813-20.
  • C. A. Bridges, T. Hansen, A. S. Wills, G. M. Luke, and J. E. Greedan
    "Frustrated magnetism and the effects of titanium substitution in the mixed-valence oxide Ba V10-x Tix O15"
    Physical Review B - Condensed Matter and Materials Physics 74 (2006) 0244261-9.
  • V. E. Antonov, I. O. Bashkin, V. K. Fedotov, S. S. Khasanov, T. Hansen, A. S. Ivanov, A. I. Kolesnikov, and I. Natkaniec
    "Crystal structure and lattice dynamics of high-pressure scandium trihydride"
    Physical Review B - Condensed Matter and Materials Physics 73 (2006) 0541071-6.
  • D. Wallacher, M. Rheinstaedter, T. Hansen, and K. Knorr
    "Neutron diffraction study of He solidified in a mesoporous glass"
    Journal of Low Temperature Physics 138 (2005) 1013-24.
  • H. Sitepu, J. P. Wright, T. Hansen, D. Chateigner, H. G. Brokmeier, C. Ritter, and T. Ohba
    "Combined synchrotron and neutron structural refinement of R-phase in Ti50.75 center dot Ni47.75Fe1.50 shape memory alloy"
    Icotom 14: Textures of Materials, Pts 1 and 2, 495-497 (2005) 255-60.
  • P. Ruello, L. Desgranges, G. Baldinozzi, G. Calvarin, T. Hansen, G. Petot-Ervas, and C. Petot
    "Heat capacity anomaly in UO2 in the vicinity of 1300 K: An improved description based on high resolution X-ray and neutron powder diffraction studies"
    Journal of Physics and Chemistry of Solids 66 (2005) 823-31.
  • I. Popa, S. Rivoirard, D. Chateigner, T. Hansen, and D. Fruchart
    "Texture development in Nd-Fe-V alloys by hot deformation in view of permanent magnet properties"
    Icotom 14: Textures of Materials, Pts 1 and 2, 495-497 (2005) 1389-94.
  • M. M. Koza, B. Geil, K. Winkel, C. K?r, F. Czeschka, M. Scheuermann, H. Schober, and T. Hansen
    "Nature of amorphous polymorphism of water"
    Physical Review Letters 94 (2005) 1-4.
  • I. Kaiser-Bischoff, H. Boysen, C. Scherf, and T. Hansen
    "Anion diffusion in Y- And N-doped ZrO2"
    Physical Chemistry Chemical Physics 7 (2005) 2061-67.
  • D. Holland-Moritz, T. Schenk, P. Convert, T. Hansen, and D. M. Herlach
    "Electromagnetic levitation apparatus for diffraction investigations on the short-range order of undercooled metallic melts"
    Measurement Science and Technology 16 (2005) 372-80.
  • P. Fischer, K. Iwasa, K. Kuwahara, M. Kohgi, T. Hansen, and S. Kunii
    "Powder neutron diffraction studies of structure and magnetic Ce ordering in the strongly correlated electron compound Ce0.75La0.25B611"
    Physical Review B - Condensed Matter and Materials Physics 72 (2005) 0144141-6.
  • J. Chen, G. A. Lager, M. Kunz, T. C. Hansen, and P. Ulmer
    "A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al2SiO4(OD)2"
    Acta Crystallographica Section E: Structure Reports Online 61 (2005) i253-i55
  • A. Benmarouane, T. Hansen, P. Millet, and A. Lodini
    "Texture measurements of hydroxyapatite crystallites at bone-implant interfaces in sheep tibia"
    Diffusion and Defect Data Pt.B: Solid State Phenomena, 2005, p. 427-32.
  • V. E. Antonov, T. E. Antonova, V. K. Fedotov, T. Hansen, A. I. Kolesnikov, and A. S. Ivanov
    "Neutron scattering studies of gamma-CoH"
    Journal of Alloys and Compounds 404-406 (2005) 73-76.


Responsibilities

  • Responsible for the high-intensity two-axis diffractometer D20
  • Local contact for experiments in diffraction, crystallography, physisorption, chemical kinetics, texture, disordered materials and magnetism, on powder samples, liquids, and single crystals
  • Member of the Diffraction Group
  • Member of the ILL Industry Liaison Group
  • Local thesis supervisor for Christian Sippel (Göttingen)


Curriculum Vitae

  • 1985-90 Studies of Chemistry, University of Kiel, Germany
  • 1989/90 Diploma thesis on high temperature synthesis of rare earth oxides of the K2NiF4 structure type, Inorganic Chemistry, Kiel, Germany
  • 1990-94 PhD thesis on high oxygen pressure synthesis & structure of mercury oxides and lattice energy, Inorganic Chemistry, Kiel, Germany
  • 1994/95 Marie Curie post doc fellow, Laboratoire des Fluorures, University of Le Mans, France
  • 1995-98 Research Scientist, Forschungszentrum Jülich, Germany, delegated to ILL, Grenoble, France
  • 1998-2000 Research Scientist, Institut Laue-Langevin, Grenoble, France
  • 2000-today Staff Scientist, Institut Laue Langevin, Grenoble, France
  • 2005/06 Sabbatical semester at University of Göttingen, Germany

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