Jülich Centre for Neutron Science
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JCNS Workshop 2009
"Trends and Perspectives in Neutron Scattering: Magnetism and Correlated Electron Systems"
4-7 October 2010, Bernried
Program

Oct. 4 2010



10:00 Registration

11:00 Thomas Brückel FZJ JCNS, Germany

Welcome

Quantum Magnetism
11:30 Stephen E. Nagler, ORNL, USA (invited)
t.b.a.

12:00 Henrik Ronnow, EPFL, Switzerland (invited)

Quantum Magnetism in Extreme Conditions

12:30 Balint Nafradi, MPI Solid State Research, Germany
Low Temperature Spin Dynamics in a Haldane Chain IPA-CuCl3

12:50 Lunch

14:00 Christian Pfleiderer, TU Munich, Germany (invited)
Spin Transfer Torques at Ultra-low Current Densities

14:30 Kirrily Rule, Helmholtz Zentrum Berlin, Germany
Neutron scattering investigations of the magnetic properties of azurite Cu3(CO3)2(OH)2

Multiferroics
14:50 Markus Braden, Cologne University, Germany (invited)
Neutron scattering studies on spiral multiferroics

15:20 Daniel Khomskii, Cologne University, Germany (invited)
Classifying multiferroics: mechanisms and effects

15:50 Coffee break

16:10 Andrew Boothroyd, Oxford University, UK (invited)
Synchrotron x-ray scattering studies of multiferroic materials: Going beyond neutron diffraction

16:40 Naveen Kumar Chogondahalli, FZJ, Germany
Crystal and magnetic structure of hexagonal DyMnO3

17:00 Tapan Chatterji, FZJ JCNS, France
Neutron scattering investigation of Multiferroic materials

17:20 Jaime Fernandez-Baca, ORNL, USA
Spin excitations in multiferroic CuFeO2

17:40 Joost de Groot, FZJ, Germany
Competing Ferri- and Antiferromagnetic Phases in Frustrated LuFe2O4

18:30 Dinner


Oct. 5 2010



Pnictides I
09:00 Andrew Christianson, ORNL, USA (invited)
Spin Excitations in Fe-based Superconductors

09:30 Thomas Keller MPI Solid State Research, Germany (invited)
Phonon life times in Ba(Fe1-xCox)2As2 (Tc = 20 K) determined by resonance spin-echo spectroscopy

10:00 Christina Drathen, University of Edinburgh, UK
Magnetism and structure of manganese pnictides SrMnPnF (Pn = P, As, Sb)

10:20 Shibabrata Nandi, Ames Lab, USA
Interplay between structural phase transition, magnetism and superconductivity in Ba(Fe1-xCox)2As2 single crystals

10:40 Coffee break

11:00 Yixi Su, FZJ JCNS, Germany (invited)
t.b.a.

11:30 David J. Singh, ORNL, USA (invited)
Magnetism and Superconductivity in Iron Compounds

12:00 Yinguo Xiao, FZJ, Germany
Magnetic structure of EuFe2As2 determined by single crystal neutron diffraction

Magneto calorics/CMR
12:20 Karl A. Gschneidner Jr., Iowa State, USA (invited)
Magnetic and crystalline structures of magnetocaloric refrigerant material

12:50 Lunch

14:10 Fangwei Wang, China Academy of Sciences, China (invited)
Interaction between orbital, charge, spin and lattice in perovskite CMR materials studied by neutron scattering

14:40 Mihail-Liviu Craus, Institute of Technical Physics, Romania
Microstructure of doped with Cu La0.54Ho0.11Sr0.35MnO3-? manganites

15:00 Pedro Gorria, University de Oviedo, Spain
Magnetic structure and magneto-volume anomalies in Er2Fe17

15:20 Holger Ulbrich, University of Cologne, Germany
Charge, orbital and spin ordering in single layered manganites and nickelates investigated by neutron and x-ray scattering

15:40 Coffee break

16:00 Poster presentations

19:00 Dinner

20:30 Poster presentations cont.


Oct. 6 2010



Instrumentation/Sample preparation
09:00 Georg Roth, RWTH Aachen, Germany (invited)
POLI-HEiDi: The new single crystal polarised neutron diffractometer at the FRM-II

09:30 Karin Schmalzl, FZJ JCNS, France
Experiments exploring superconductivity on IN12

09:50 Werner Schweika, FZJ, Germany
Diffuse neutron scattering studies of single crystals with polarization analysis

10:10 Jörg Voigt, FZJ, Germany
TOPAS - Thermal TOF with polarization analysis

10:30 Coffee break

10:50 H. Hiraka, Tohoku University, Japan
Ni-impurity effect in high-Tc cuprate La2-xSrxCuO4

Pnictides II
11:10 Thomas Wolf, KIT, Germany (invited)
t.b.a.

11:40 Dirk Johrendt, LMU Munich, Germany (invited)
Structural subtleties of Fe-based superconductors

12:10 David Mandrus, ORNL, USA (invited)
Spin Fluctuations in Fe-based Superconductors

12:40 Lunch

Frustrated Magnets
14:00 Arsen Goukassov, LLB, France (invited)
Anisotropic Exchange in Frustrated Pyrochlore Compounds

14:30 Tom Fennel, ILL, France (invited)
Coulomb phases in the spin ices Ho2Ti2O7 and Dy2Ti2O7

15:00 Thomas Hayes, University Warwick, UK
Two-component magnetic ordering in the geometrically frustrated strontium lanthanide salts SrEr2O4 and SrDy2O4

15:20 Anton P.J. Stampfl, ANSTO, Australia
The pyrochlore to fluorite transition of lanthanide zironcates: A vibronically coupled system?

15:40 Coffee break

16:00 Alan Tennant, HZB, Germany (invited)
Dissociation of north and south poles in spin ice

16:30 Lieh-Jeng Chang, JAEA, Japan
Polarized neutron studies on the diluted spin ice Ho2-xYxTi2O7

16:50 Zhendong Fu, FZJ, Germany
Polarized neutron scattering from spin frustrated molecular magnets

17:10 Krunoslav Prsa, PSI, Switzerland
Anomalous magnetic excitations of cooperative tetrahedral spin clusters

18:00 Workshop Dinner


Oct. 7 2010



Heavy Fermions
09:00 Oliver Stockert, MPI Dresden, Germany (invited)
Magnetism and superconductivity in heavy-fermion systems close to quantum criticality

09:30 Chris Stock, ISIS, UK (invited)
t.b.a.

10:00 Kirill Nemkovskiy, Kurchatov Institute, Russia
Effects of electron doping in the spin dynamics of YbB12

Magnetic nanomaterials and thin films
10:20 Frank Döbrich, University Luxembourg, Luxembourg
Magnetic microstructure of nanocrystalline gadolinium: a small-angle neutron scattering study

10:40 Coffee break

11:00 Laszlo Bottyan, KFKI, Hungary
Inverse proximity effects in superconductor/ferromagnet single bilayer revealed by waveguide-enhanced polarized neutron reflectometry

11:20 Dieter Lott, GKSS, Germany
Field-induced chirality in Dy/Y multilayer systems

11:40 Jochen Fenske, GKSS, Germany
Magnetic spin configuration in L10 structured Fe50Pt50-xRhx films

12:00 Lunch

13:30 Visit of FRM II

17:00 End of Workshop



Poster presentations
Shilpa Adiga FZJ, Germany
High-Quality Crystals for In-situ Study of Possible Ferroelectricity in Magnetite

Manuel Angst, FZJ, Germany
Orbital order in magnetoelectric LuFe2O4 ? A hard and soft resonant x-ray diffraction study

Artur Bielefeld, University Cologne, Germany
Charge, orbital and spin ordering in single layered manganites and nickelates investigated by neutron and x-ray scattering

Jesus Angel Bianco, Universidad de Oviedo, Spain
McPhase – a versatile modelling suite for investigating the magnetic excitations in the longitudinally amplitude modulated magnetic structure of PrNi2Si2

Lucia Caponga, CNR, Italy
Metamagnetic transition and magnetic structure of the triple layer ruthenate S4Ru3O10

Sabrina Disch, FZJ, Germany
Spin wave excitations in magnetic nanoparticles

Zhendong Fu, FZJ, Germany
Spin glass behavior in pyrochlore antiferromagnet Na3Co(CO3)2Cl

Artur Galvic, FZJ, Germany
Ferromagnetism of LaCoO3 thin films and its influence on adjacent multiferroic TbMnO3

Alexander T. Grünwald, GKSS, Germany
Neutron scattering measurements of magnetic excitations in Gd/Y and Dy/Y superlattices

LunHua He, Institute of Physics, China
Strong interplay between structure and magnetism in cubic NaZn13-type intermetallic compound

Kazumasa Horigane, Toholu University, Japan
Magnetic impurity effect on charge and magnetic order in doped La2-xCaxCoO4 (x=0.5, 0.7)

Vladimir Hutanu, RWTH Aachen, Germany
Spherical Neutron Polarimetry (SNP) study of the incomensurate magnetic structure in the antiferromagnetic superconductor HoNi2B2C

Elisabeth Josten, FZJ, Germany
Magnetic scattering from 3D ordered nanoparticle assemblies

Emmanuel Kentzinger, FZJ, Germany
Tb magnetic susceptibility tensor in multiferroic and magnetoelectric TbMnO3: a polarized neutron diffraction study

Denis Korolkov, FZJ JCNS, Germany
Investigation of Fe nanocolumns interactions by SANS with polarized neutrons

Wolfgang Kreuzpaitner, TU München, Germany
Preparation and Characterisation of Ni Nanowires on Si Gratings

Daniel Lamago, KIT, Germany
Search for an Influence of Superconductivity on the Phonons In BaFe1.8Co0.2As2.

Stefan Mattauch, FZJ JCNS, Germany
MARIA – The new high-intensity polarized neutron reflectometer of JCNS

Amy Poole, PSI, Switzerland
Control of the magnetic order in multiferroic MnWO4

Stephen Price, FZJ, Germany
Magnetic neutron scattering on Iron arsenide high TC superconductors

Erik Rosen, FZJ, Germany
Magnetic order and frustration in CaBaCo2Fe2O7

Wolfgang Schmidt, FZJ JCNS, France
IN12-UFO: The new multi-analyser system for the three axis spectrometer IN12

Harald Schneider, FZJ JCNS, Germany
JCNS-Sample Environment for Neutron Scattering related to research in Magnetism

Wiqar Hussain Shah, King Faisal University, Saudi Arabia
Competing Interactions in Doped Rare-earth Manganites

Jörg Voigt FZJ, Germany
Magnetic structure of GdMnO3

Frank Weber KIT, Germany
Superconductivity-Induced Distortions of Phonon Lineshapes in Niobium

Yixi Su FZJ JCNS, Germany
DNS – A diffuse neutron scattering spectrometer with polarization analysis at FRM II


 
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