Evidence for Magnetic Skyrmions at the Interface of Ferromagnet/Topological-Insulator Heterostructures.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 31438678.
- Also identified by DOI 10.1021/acs.nanolett.9b02191.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
The heterostructures of the ferromagnet (Cr<sub>2</sub>Te<sub>3</sub>) and topological insulator (Bi<sub>2</sub>Te<sub>3</sub>) have been grown by molecular beam epitaxy. The topological Hall effect as evidence of the existence of magnetic skyrmions has been observed in the samples in which Cr<sub>2</sub>Te<sub>3</sub> was grown on top of Bi<sub>2</sub>Te<sub>3</sub>. Detailed structural characterizations have unambiguously revealed the presence of intercalated Bi bilayer nanosheets right at the interface of those samples. The atomistic spin-dynamics simulations have further confirmed the existence of magnetic skyrmions in such systems. The heterostructures of ferromagnet and topological insulator that host magnetic skyrmions may provide an important building block for next generation of spintronics devices.