Conveners
M2-9 Magnetism and heavy fermions II (DCMMP) | Magnétisme et fermions lourds II DPMCM)
- Joseph Thywissen (University of Toronto)
Spin-pumping is the phenomenon by which a pure spin current can be injected into a non-magnetic metal from an adjacent ferromagnet. Spin-pumping into Pt is of great interest since Pt exhibits large inverse spin Hall effect, important for many spintroincs applications. However, it is not clear that the mechanism of spin-pumping into Pt is well described by standard spin pumping theory...
The rhenium (Re)-based compounds are difficult to synthesize owing to the element’s high melting temperature and low solubility into solid solution. In this talk, we will present an anomalous transport property observed in single crystal Re3Ge7. In zero field, the temperature dependence of electrical resistivity sharply increases below a phase transition temperature Tc = 58.5 K, showing a...
Idealized two-dimensional ferromagnetic films are predicted to undergo a Kosterlitz-Thouless (KT) transition that involves topological excitations termed vortices. Whereas the idealized system is isotropic within the plane (2DXY symmetry), real ferromagnetic films grown on single crystal substrates display anisotropy and finite-size effects that can lead to more complicated behaviour. In this...
The recent discovery of Anomalous Hall Effect in Mn3X (X=Sn,Ge) suggests the existence of Weyl nodes in the electronic band structure of these non-collinear antiferromagnets [1]. The resulting coupling of electronic transport and magnetism in Mn3X presents important technological opportunities. The magnetic properties of Mn3X are crucial to Weyl physics and to its implementation in devices but...
Magnetic frustration occurs when a material’s lattice geometry prevents it from finding the classical ground state which minimizes pairwise magnetic interaction energies. In such situations, novel ground states with exotic properties can emerge: examples include classical and quantum spin ice and classical and quantum spin liquids. Many different states and excitations have been predicted...
