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Programme


Novel Physics on the kagome network Program

 

The program is built from the accepted contributions of the ESF-HFM network participants and some invited contribution out of the network. Click here for the list of participants.

 

Invited speakers (not ESF) :

 

  • J. Cumings (Univ. of Maryland)
  • J.S. Gardner (Indiana university)
  • J.S. Helton (NIST CNR, Maryland)
  • M.A. Hermele (Univ. Colorado, Boulder)
  • Z. Hiroi (ISSP Tokyo)
  • A. Sen (Boston university)
  • R.R.P. Singh (Univ. California, Davis)
  • O. Tchernyshyov (Johns Hopkins University, Baltimore)

 

PROGRAM

 

Program and Abstract booklet (pdf)

 

Sunday 17th January, 2010

19:00-21:00 Welcome Buffet at the Residhome hotel

 

Monday 18th January, 2010

08:30-09:00 Welcome
09:00-09:40 Spin dynamics and scaling behavior in the spin-½ Kagomé Lattice antiferromagnet herbertsmithite
S. Helton, K. Matan, M. P. Shores, B. M. Bartlet, E. A. Nytko, Y. Qiu, D. G. Nocera, Y. S. Lee
09:40-10:05 The spin-½ kagomé antiferromagnet : static and dynamical correlations, spin gap or criticality ?
C. Lhuillier, L.Messio, P. Sindzingre, A.M. Läuchli, O. Cépas
10:05-10:30 Local properties of the quantum Kagomé antiferromagnet Herbertsmithite
A. Olariu, A. Zorko, E. Kermarrec, F. Bert, P. Mendels, M.A. de Vries, J.-C. Trombe
10:30 Coffee break
11:00-11:40 Algebraic spin liquid on the Kagomé lattice
M. Hermele
11:40-12:05 Static and dynamic correlations in the kagomé antiferromagnet herbertsmithite – direct evidence of a quantum spin liquid ground state
M.A. de Vries
12:05-12:30 Interplay of thermal and quantum fluctuations in the kagomé lattice compound ZnCu3(OH)6Cl2
P. Lemmens, D. Wulferding, P. Scheib, V. Gnezdilov, P. Mendels, R. Colman, M.A. de Vries
12:30-14:00 Lunch
14:15-14:55 Possible valence bound crystal order in the kagomé lattice antiferromagnet
R.R.P. Singh
14:55-15:20 The symmetry of the spin Hamiltonian for spin-½ kagomé lattices and its implications
A. Keren
15:20-16:00 Non magnetic impurities in kagomé antiferromagnets
F. Mila
16:30 Coffee break
16:30-16:55 S = ½ Kagomé systems : synthetic challenges and recent advances
R. Colman, B. Fak, A.S. Wills
16:55-17:20 Spin dynamics of classical and quantum kagomé antiferromagnets studied by inelastic neutron scattering
B. Fak, R. Colman, A.S. Wills, G. Nilsen, A. Harrison, J. Ollivier, D. Vissier, T. Unruh
17:20-18:00 ESR linewidth and lineshape in spin systems
O. Cépas, S. El Shawish, S. Miyashita
18:00-20:00 Poster Session - Dinner buffet

 

Tuesday 19th January, 2010

09:00-09:40 Developments in Artificial Spin Ice and Artificial Kagome Ice
J. Cumings
09:40-10:20 Spin Correlations in Langasite Compounds – from spin liquid to spin solid
J.S. Gardner
10:20 Coffee break
10:50-11:15 Kagomé antiferromagnets with easy-axis anisotropy
A. Sen
11:15-11:55 Cooperative magnetism and magnetocrystalline anisotropy in rare-earth langasites
V. Simonet, E. Lhotel, R. Ballou, J. Robert, K. Marty, P. Bordet, B. Canals, F. Hippert, P. Fouquet, J. Ollivier
11:55-12:20 Local-Probe Investigation of Rare-Earth Based Langasites
A. Zorko, F. Bert, P. Mendels
12:20-14:15 Lunch
14:15-14:40 Kagomé staircase compound Co3V2O8 in an applied magnetic field : single crystal neutron diffraction study
O. A. Petrenko, N.R. Wilson, G. Balakrishnan, D. McK Paul and G.J. McIntyre
14:40-15:20 Spin correlations in geometrically frustrated RBaCo4O7
P. Manuel, D.D. Khalyavin ; L.C. Chapon and J.F. Mitchell
15:20-15:45 Spin fluctuations and freezing in Y0.5Ca0.5BaCo4O7
H. Mutka, J.R. Stewart, G. Ehlers, C. Payen, P. Fouquet, R. Lortz
15:45 Coffee break
16:15-16:55 Spin excitations with Fermi statistics in the S = 1=2 Heisenberg model on kagome
Z. Hao, O. Tchernyshyov
16:55-17:20 Symmetry analysis of low-energy spectra of highly frustrated AFMs with s > 1=2
I. Rousochatzakis, A. Läuchli, F. Mila
17:20-17:45 Hard-dimer degrees of freedom for the Hubbard model on kagomé stripes
J. Richter, O. Derzhko, A. Honecker, M. Maksymenko, R. Moessner
17:45-18:10 Frustration in the Itinerant Ferromagnet Fe3Sn2
L. Fenner, A.S. Wills
20:00 Workshop dinner

 

Wednesday 20th January, 2010

09:00-09:40 Novel Phenomena in the Spin-½ Kagome Compound Volborthite
Y. Okamoto, M. Tokunaga, M. Yoshida, M. Takigawa, Z. Hiroi
09:40-10:05 Volborthite Cu3V2O7(OH)2_2H2O : Orbital ordering on a distorted kagomé geometry
O. Janson, J. Richter, P. Sindzingre, H. Rosner
10:05-10:30 Neutron Scattering Studies of the S = ½ Quasi-Kagome System Volborthite
G. J. Nilsen, F. C. Coomer, J. R. Stewart, P. P. Deen, M. A. DeVries, H. M. Rønnow, and A. Harrison
10:30 Coffee break
11:00-11:25 Which model spin Hamiltonian for Volborthite ?
P. Sindzingre
11:25-11:50 The Kagomé Heisenberg Antiferromagnet : at a First-Order Phase Transition close to a Quantum Critical Point ?
Didier Poilblanc
11:50-12:15 A Generalized Quantum Dimer Model for the singlet sector of the kagomé antiferromagnet
M. Mambrini
12:15-12:55 Dimerization patterns in kagome based quantum magnets
Andreas Läuchli