Speaker
Mr
Virgile Favre
(LQM)
Description
Materials with antiferromagnetic interactions between spins on a triangle lattice inherently exhibit large frustration between similar energy ground states giving rise to new behavior. The kagomé lattice is an enticing example; however, various effects hinder its highly degenerate spin-liquid state and instead select a single magnetic ground state. It is therefore worthwhile to study nearly-kagomé compounds in an attempt to discern what precisely stops formation of the spin-liquid. Since it has strong antiferromagnetic interactions on a diamond-kagomé lattice we studied the magnetic excitation spectra of Cu2OSO4 in order to help elucidate the mechanisms by which spin-liquid formation fails.
Authors
Mr
Virgile Favre
(LQM)
H.M Ronnow
(Institute of Physics, École Polytechnique Fed´erale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland)
