Surface-Driven Magnetotransport in Perovskite Nanocrystals.
basic_science · Level V
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- Record sourced from PubMed, PMID 28009460.
- Also identified by DOI 10.1002/adma.201604745.
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Abstract
Unique insights into magnetotransport in 20 nm ligand-free La<sub>0.67</sub> Sr<sub>0.33</sub> MnO<sub>3</sub> perovskite nanocrystals of nearly perfect crystalline quality reveal a chemically altered 0.8 nm thick surface layer that triggers exceptionally large magnetoresistance at low temperature, independently of the spin polarization of the ferromagnetic core. This discovery shows how the nanoscale impacts magnetotransport in a material widely spread as electrode in hybrid spintronic devices.