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  Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films

Chen, Z., Chen, Z., Kuo, C.-Y., Tang, Y., Dedon, L. R., Li, Q., et al. (2018). Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films. Nature Communications, 9: 3764, pp. 1-9. doi:10.1038/s41467-018-06190-5.

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Chen, Zuhuang1, Autor
Chen, Zhanghui1, Autor
Kuo, Chang-Yang2, Autor           
Tang, Yunlong1, Autor
Dedon, Liv R.1, Autor
Li, Qian1, Autor
Zhang, Lei1, Autor
Klewe, Christoph1, Autor
Huang, Yen-Lin1, Autor
Prasad, Bhagwati1, Autor
Farhan, Alan1, Autor
Yang, Mengmeng1, Autor
Clarkson, James D.1, Autor
Das, Sujit1, Autor
Manipatruni, Sasikanth1, Autor
Tanaka, A.1, Autor
Shafer, Padraic1, Autor
Arenholz, Elke1, Autor
Scholl, Andreas1, Autor
Chu, Ying-Hao1, Autor
Qiu, Z. Q.1, AutorHu, Zhiwei3, Autor           Tjeng, Liu-Hao4, Autor           Ramesh, Ramamoorthy1, AutorWang, Lin-Wang1, AutorMartin, Lane W.1, Autor mehr..
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
4Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              

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 Zusammenfassung: Electric-field control of magnetism requires deterministic control of the magnetic order and understanding of the magnetoelectric coupling in multiferroics like BiFeO3 and EuTiO3. Despite this critical need, there are few studies on the strain evolution of magnetic order in BiFeO3 films. Here, in (110)-oriented BiFeO3 films, we reveal that while the polarization structure remains relatively unaffected, strain can continuously tune the orientation of the antiferromagnetic-spin axis across a wide angular space, resulting in an unexpected deviation of the classical perpendicular relationship between the antiferromagnetic axis and the polarization. Calculations suggest that this evolution arises from a competition between the Dzyaloshinskii–Moriya interaction and single-ion anisotropy wherein the former dominates at small strains and the two are comparable at large strains. Finally, strong coupling between the BiFeO3 and the ferromagnet Co0.9Fe0.1 exists such that the magnetic anisotropy of the ferromagnet can be effectively controlled by engineering the orientation of the antiferromagnetic-spin axis.

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Sprache(n): eng - English
 Datum: 2018-09-212018-09-21
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1038/s41467-018-06190-5
Anderer: Chen2018
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Titel: Nature Communications
  Kurztitel : Nat. Commun.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: London : Nature Publishing Group
Seiten: - Band / Heft: 9 Artikelnummer: 3764 Start- / Endseite: 1 - 9 Identifikator: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723