Abstract:
:Epitaxial films may be released from growth substrates and transferred to structurally and chemically incompatible substrates, but epitaxial films of transition metal perovskite oxides have not been transferred to electroactive substrates for voltage control of their myriad functional properties. Here we demonstrate good strain transmission at the incoherent interface between a strain-released film of epitaxially grown ferromagnetic La0.7Sr0.3MnO3 and an electroactive substrate of ferroelectric 0.68Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 in a different crystallographic orientation. Our strain-mediated magnetoelectric coupling compares well with respect to epitaxial heterostructures, where the epitaxy responsible for strong coupling can degrade film magnetization via strain and dislocations. Moreover, the electrical switching of magnetic anisotropy is repeatable and non-volatile. High-resolution magnetic vector maps reveal that micromagnetic behaviour is governed by electrically controlled strain and cracks in the film. Our demonstration should inspire others to control the physical/chemical properties in strain-released epitaxial oxide films by using electroactive substrates to impart strain via non-epitaxial interfaces.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Pesquera D,Khestanova E,Ghidini M,Zhang S,Rooney AP,Maccherozzi F,Riego P,Farokhipoor S,Kim J,Moya X,Vickers ME,Stelmashenko NA,Haigh SJ,Dhesi SS,Mathur NDdoi
10.1038/s41467-020-16942-xsubject
Has Abstractpub_date
2020-06-24 00:00:00pages
3190issue
1issn
2041-1723pii
10.1038/s41467-020-16942-xjournal_volume
11pub_type
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