Conveners
M1-3 Magnetism and Heavy Fermions I (DCMMP) I Magnétisme et fermions lourds I (DPMCM)
- Nicolas Doiron-Leyraud (Université de Sherbrooke)
Systems based on lattices of triangular or tetrahedral units with nearest neighbour antiferromagnetic exchange interactions are the archetypal examples of geometric magnetic frustration, offering a means of accessing novel ground states. Rich phenomenology has similarly been observed in extensive investigations of Ce (4f1) and Yb (4f13) based intermetallic compounds, including heavy fermion...
For Ce- and Yb-based metallic systems, the competition between Kondo and RKKY interactions results in a great variety of ground states. When these rare-earth ions are located on the geometrically frustrated lattices, the magnetic order may be tuned by the introduction of magnetic frustration. Although the lattices are geometrically frustrated for the short range, nearest neighbor spin-spin...
Cubic compounds with Yb3Rh4Sn13-type structure have drawn attention because of their rich ground states such as heavy fermion behavior, intermediate valence behavior, charge density wave, and superconductivity. In this talk, we will present the structural, magnetic, and electrical properties of cubic R3Ru4Ge13 (R = Yb and Lu) compounds. Single crystals of R3Ru4Ge13 were characterized by...
The rare earth pyrochlores family of materials that are renowned for the diversity and novelty of their magnetic ground states. However, despite more than 20 years of effort, a consensus on the nature of the magnetic ground states of the terbium pyrochlores has remained elusive. Indeed, there are numerous confounding factors that come into play in these materials, including: a low-lying...
