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Project
Chirality by design in magnetic 2D materials
Further technological advance of our modern society will critically depend on novel, all-in-one materials, able to couple magnetic, elastic, and electronic degrees of freedom in a controllable fashion. Atomically-thin 2D materials may be just what is needed, exhibiting a range of advanced properties, tunable by stretching, bending, gating, and/or heterostructuring. With advent of magnetism in 2D materials (only since 2017), tailoring their multifunctional behavior is at its prime potential. Magnetism in 2D materials is quite special, since any incurred symmetry change (with e.g. bending) affects magnetic interactions and causes adjacent magnetic moments to misalign, owing to strong emergent chirality, comparable to usual aligning interactions. Chiral interactions lead to observable nontrivial magnetic textures, such as skyrmions, and cause entirely different behavior of dynamic excitations (magnons), both of which bear documented technological promise. Symmetry breaking that causes chirality is also accompanied by local electric field, so that chiral magnetism and electric polarization in a 2D material are effectively coupled. This project is devoted to understanding of that coupling, and its response to standard manipulations within the realm of 2D materials, that will enable tailoring of chiral magneto-electronics practically at will, for actively and broadly tunable technology very sensitive to electric, magnetic, optical or mechanical stimuli.
Date:1 Nov 2021 → Today
Keywords:MAGNETIC 2D MATERIALS
Disciplines:Magnetism and superconductivity, Nanophysics and nanosystems, Surfaces, interfaces, 2D materials, Phase transformations, Computational physics