Enhancement of the Coercive Field and Exchange Bias Effect in Fe<sub>3</sub>GeTe<sub>2</sub>/MnPX<sub>3</sub> (X = S and Se) van der Waals Heterostructures
Hongwei Dai, Hui Cheng, Menghao Cai, Qinghua Hao, Yuntong Xing, Hongjing Chen, Xiaodie Chen, Xia Wang, Junbo Han
Abstract
van der Waals heterostructures were fabricated by mechanical exfoliation. Via the magneto-optical Kerr effect and reflected magnetic circular dichroism measurements, we have observed nearly three times enhancement of the coercive field, improvement of Curie temperature, and exchange bias effect in both heterostructures. These observations may provide new insights into the emergent heterostructure devices between itinerant ferromagnets and metal thio- and selenophosphates for both applied and fundamental research studies in magnetic correlations.
Topics & Concepts
Materials sciencevan der Waals forceHeterojunctionCondensed matter physicsMagnetic circular dichroismFerromagnetismExchange biasCoercivityCurie temperatureField (mathematics)Kerr effectExfoliation jointMagnetic fieldGrapheneNanotechnologyOptoelectronicsMagnetizationMagnetic anisotropyPhysicsSpectral lineMathematicsPure mathematicsAstronomyMoleculeQuantum mechanicsNonlinear system2D Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties