Ultra-large non-volatile modulation of magnetic moments in PbZr(0.2)Ti(0.8)O(3)/MgO/La(0.7)Sr(0.3)MnO(3) heterostructure at room temperature via interfacial polarization mediation

Multiferroic hybrid structures PbZr(0.2)Ti(0.8)O(3) (PZT)/La(0.7)Sr(0.3)MnO(3) (LSMO) and PZT/MgO/LSMO were epitaxially deposited on (001) Nb:SrTiO(3) crystals. Crystallinity and ferroelectric domain structures were investigated for the PZT/LSMO heterostructure. Interestingly, relatively high non-vo...

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Detalles Bibliográficos
Autores principales: Liu, Q., Miao, J., Reeve, Robert, Meng, K. K., Xu, X. G., Wu, Y., Jiang, Y.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453987/
https://www.ncbi.nlm.nih.gov/pubmed/28572679
http://dx.doi.org/10.1038/s41598-017-03019-x
Descripción
Sumario:Multiferroic hybrid structures PbZr(0.2)Ti(0.8)O(3) (PZT)/La(0.7)Sr(0.3)MnO(3) (LSMO) and PZT/MgO/LSMO were epitaxially deposited on (001) Nb:SrTiO(3) crystals. Crystallinity and ferroelectric domain structures were investigated for the PZT/LSMO heterostructure. Interestingly, relatively high non-volatile magnetoelectric coupling effects were observed in both heterostructures at room temperature. The change of chemical valence for Mn and Ti at the PZT/MgO/LSMO interface may play a dominant role rather than external strain or orbital reconstruction, which lead to a large modulation of the magnetization. Correspondingly, the transport behavior of the PZT/MgO/LSMO heterostructure is investigated to confirm the role of oxygen vacancies motion. Our result indicates that the PZT/MgO/LSMO heterostructure have a promising application for future high-density non-volatile memories.

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