TY - JOUR
T1 - Criticality, anisotropy and dimensionality in the van der Waals ferromagnet CrI3
AU - Navarro-Moratalla, Efrén
AU - Augustin, Mathias
AU - Abdul Wahab, Dina
AU - Vera Marun, Ivan
AU - Novoselov, Kostya
AU - Evans, Richard F. L.
AU - Santos, Elton J. G.
PY - 2019
Y1 - 2019
N2 - Magnetic order is prohibited in the 2D Heisenberg isotropic model at
finite temperatures by the long-established theorem put forward by
Mermin and Wagner. Indeed, the recent studies on true 2D magnets have
nothing but confirmed that magnetic anisotropy is pivotal for
eliminating this restriction and allowing, for example, the onset of 2D
ferromagnetism in a bilayer of chromium germanium telluride, or in a
single layer of chromium triiodide (CrI3). These materials happen to be
two identical uniaxial systems from the point of view of their magnetic
anisotropy. However, the critical behavior of these 2D magnets is still
a matter of debate amidst contradictory reports of the critical
exponents. By modelling magnetometry experiments on bulk crystals and
magneto-optic data of the monolayer we will shed new light on the
universality class of these van der Waals magnets.
AB - Magnetic order is prohibited in the 2D Heisenberg isotropic model at
finite temperatures by the long-established theorem put forward by
Mermin and Wagner. Indeed, the recent studies on true 2D magnets have
nothing but confirmed that magnetic anisotropy is pivotal for
eliminating this restriction and allowing, for example, the onset of 2D
ferromagnetism in a bilayer of chromium germanium telluride, or in a
single layer of chromium triiodide (CrI3). These materials happen to be
two identical uniaxial systems from the point of view of their magnetic
anisotropy. However, the critical behavior of these 2D magnets is still
a matter of debate amidst contradictory reports of the critical
exponents. By modelling magnetometry experiments on bulk crystals and
magneto-optic data of the monolayer we will shed new light on the
universality class of these van der Waals magnets.
M3 - Meeting abstract
VL - 64
JO - APS March Meeting 2019
JF - APS March Meeting 2019
IS - 2
T2 - APS March Meeting 2019
Y2 - 4 March 2019 through 8 March 2019
ER -