Conveners
(M2-5) Magnetic / Frustrated Systems - DCMMP / Systèmes magnétiques / frustrés - DPMCM
- Tami Pereg-Barnea (McGill University)
Prof.
Jeffrey Quilliam
(Université de Sherbrooke)
16/06/2014, 15:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
The quantum spin liquid (QSL) is a quantum entangled and dynamical ground state of a magnetic material with strange fractional excitations. This enticing phenomenon was predicted decades ago to occur in materials with competing (frustrated) interactions. However, the road to discovering real materials of this nature is a long one and it is only recently that we have access to several good QSL...
Dr
Patrick Clancy
(University of Toronto)
16/06/2014, 16:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
We have performed resonant inelastic x-ray scattering (RIXS) measurements on epitaxial thin film samples of the layered perovskite iridates Ba$_2$IrO$_4$ and Sr$_2$IrO$_4$. These compounds display a novel J$_{eff}$ = 1/2 Mott insulating ground state driven by strong 5d spin-orbit coupling effects. By studying 10 to 50 nm thin film samples grown on a variety of different substrates (GSO, STO,...
Prof.
Michel Gingras
(University of Waterloo)
16/06/2014, 16:30
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Invited Speaker / Conférencier invité
In some magnetic systems, known as frustrated magnets, the lattice geometry or the competition between different spin-spin interactions can lead to a sub-exponentially large number of accidentally degenerate classical ground states, or false vacuua, and thus a sort of landscape problem for condensed matter physicists. Order-by-disorder (OdD) is a concept of central importance in the field of...
