Recent Advances in Two-Dimensional Magnets: Physics and Devices towards Spintronic Applications
(a) Raman spectra of 30 nm Cr2Ge2Te6 under different conditions at 300 K. (b) Raman spectra of Ca2RuO4 with two magnetic geometries ( and scattering) under various temperatures. (c) Low-frequency polarized Raman spectra of monolayer NiPS3. (d) Polarized Raman spectra of 10 nm MnPS3 with . (e) Photoluminescence spectra of monolayer CrI3 for (red) and (blue) circularly polarized photoluminescence with the application of an out-of-plane magnetic field at 15 K. The center panel is the plotting of circular polarization () dependence on the applied magnetic field. (f) Temperature-dependent Kerr rotation intensities of Cr2Ge2Te6 with varying thickness under a perpendicular field ~0.075 T. (g) Experimental (blue squares) and theoretical (red dotted lines) field-dependent of Cr2Ge2Te6 with varying thickness. Panel (a) is reproduced with permission from ref. , copyright 2016 2D Materials. Panel (b) is reproduced with permission from ref. , copyright 2017 Physical Review Letters. Panel (c) is reproduced with permission from ref. , copyright 2019 Nature Communications. Panel (d) is reproduced with permission from ref. , copyright 2017 ACS Nano. Panel (e) is reproduced with permission from ref. , copyright 2017 Nature Physics. Panel (f, g) are reproduced with permission from ref. , copyright 2017 Letter.