2D magnetic materialsvan der WaalsCrI3magneto-optical effectneutron scatteringFe3GeTe2magnetic genomeatomistic spin dynamicsEQUATION-OF-STATETRANSITION-METAL DICHALCOGENIDESMUON-SPIN-ROTATIONROOM-TEMPERATURE FERROMAGNETISMMASSIVE DIRAC FERMIONSLIQUID GROUND-STATESINGLE-LAYER MOS2LONG-RANGE ORDERCRITICAL-BEHAVIOR2D MATERIALS