Exploring the Limits of Ultrafast Magnetism in van der Waals Magnets

Long searched but only now discovered two-dimensional (2D) magnets are
one of the selected group of materials that retain or impart strongly spin
correlated properties at the limit of atomic layer thickness. In this
presentation, I will discuss how different layered compounds (e.g., CrX3
(X=F, Cl, Br, I), MnPS3, Fe5-xGeTe2, Cr2Ge2Te6) can provide new
playgrounds for applications and fundamental exploration of spin
correlations involving quantum-effects, topological spin-excitations and
ultrafast laser pulses. In particular, I will show how van der Waals magnets
do not require any magnetic anisotropy to stabilize 2D magnetism and
demonstrate the null valid of the Mermin-Wagner theorem in practical
applications. Moreover, some recent results of ultrafast laser excitations on
different vdW heterostructures will be shown towards all-optical control of
their magnetic properties with efficient heat management.
Speaker(s): , Elton Santos
Virtual: https://events.vtools.ieee.org/m/479396