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arXiv · 1308.0349

Topological States in Ferromagnetic CdO/EuO Superlattices and Quantum Wells

Haijun Zhang·Jing Wang·Gang Xu·Yong Xu·Shou-Cheng Zhang
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Abstract

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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Haijun Zhang, Jing Wang, Gang Xu, Yong Xu, Shou-Cheng Zhang. 2014-03-14. Topological States in Ferromagnetic CdO/EuO Superlattices and Quantum Wells. https://doi.org/10.1103/physrevlett.112.096804

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