Ferromagnetism and Conductivity in Atomically Thin SrRuO3

Ferromagnetism and Conductivity in Atomically Thin SrRuO3

Atomically thin ferromagnetic and conducting electron systems are highly desired for spintronics, because they can be controlled with both magnetic and electric fields. We present(SrRuO3)1−(SrTiO3)5superlattices and single-unit-cell-thickSrRuO3samples that are capped withSrTiO3. We achieve samples o...

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Veröffentlicht in:Physical review. X 2019-02, Vol.9 (1)
Hauptverfasser: Boschker, H, Harada, T, Asaba, T, Ashoori, R, Boris, A V, Hilgenkamp, H, Hughes, C R, Holtz, M E, L. Li, Muller, D A, Nair, H, Reith, P, X. Renshaw Wang, Schlom, D G, Soukiassian, A, Mannhart, J
Format: Artikel
Sprache:eng
Schlagworte:
Conduction
Conductors
Curie temperature
Electric fields
Electron spin
Ferromagnetism
Heterostructures
Hysteresis
Magnetism
Physics
Spintronics
Strontium titanates
Transition metal oxides
Unit cell
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Zusammenfassung:Atomically thin ferromagnetic and conducting electron systems are highly desired for spintronics, because they can be controlled with both magnetic and electric fields. We present(SrRuO3)1−(SrTiO3)5superlattices and single-unit-cell-thickSrRuO3samples that are capped withSrTiO3. We achieve samples of exceptional quality. In these samples, the electron systems comprise only a singleRuO2plane. We observe conductivity down to 50 mK, a ferromagnetic state with a Curie temperature of 25 K, and signals of magnetism persisting up to approximately 100 K.
ISSN:2160-3308
2160-3308
DOI:10.1103/PhysRevX.9.011027