- Main
A room temperature polar magnetic metal
- Author(s): Zhang, H;
- Shao, YT;
- Chen, R;
- Chen, X;
- Susarla, S;
- Raftrey, D;
- Reichanadter, JT;
- Caretta, L;
- Huang, X;
- Settineri, NS;
- Chen, Z;
- Zhou, J;
- Bourret-Courchesne, E;
- Ercius, P;
- Yao, J;
- Fischer, P;
- Neaton, JB;
- Muller, DA;
- Birgeneau, RJ;
- Ramesh, R
- et al.
Abstract
The emergence of long-range magnetic order in noncentrosymmetric compounds has stimulated interest in the possibility of exotic spin transport phenomena and topologically protected spin textures for applications in next-generation spintronics. Polar magnets, with broken symmetries of spatial inversion and time reversal, usually host chiral spin textures. This work reports on a wurtzite-structure polar magnetic metal, identified as AA′-stacked (Fe0.5Co0.5)5GeTe2, which exhibits a Néel-type skyrmion lattice as well as a Rashba-Edelstein effect at room temperature. Atomic resolution imaging of the structure reveals a structural transition as a function of Co-substitution, leading to the emergence of the polar phase at 50% Co. This discovery reveals an unprecedented layered polar magnetic system for investigating intriguing spin topologies, and it ushers in a promising new framework for spintronics.
Main Content
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