Topological States in Ferromagnetic CdO/EuO Superlattices and Quantum Wells
classification
❄️ cond-mat.mes-hall
cond-mat.mtrl-sci
keywords
quantumferromagneticsimpleweyladditionanomalousbandbasic
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Based on ab initio calculations, we demonstrate that the ferromagnetic CdO/EuO superlattice is a simple Weyl semimetal with two linear Weyl nodes in the Brillouin zone, and the corresponding CdO/EuO quantum well realizes the stichometric quantum anomalous Hall state without random magnetic doping. In addition, a simple effective model is presented to describe the basic mechanism of spin polarized band inversion in this system.
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