Abstract
The interfacial coupling between electron correlated complex oxides opens a promising avenue for achieving new forms of magnetism that arises as a consequence of charge transfer, orbital reconstruction and symmetry-breaking. Herein we reported a distinct magnetic structure in La2/3Sr1/3MnO3 (LSMO) film sandwiched between La1/2Sr1/2CoO2.5+δ (LSCO) bilayer grown on (001)-oriented SrTiO3 substrates. It is found that the LSMO layer of heterostructure contains two independent components that are respectively free layer (free-LSMO) and coupled layer with LSCO (coupled-LSMO). The easy axis of the free-LSMO is in-plane, while it is out-of-plane directed for the coupled-LSMO layer. The thickness of these two parts in the LSMO layer are 4uc and 12uc respectively. This is in sharp contrast to the single LSMO layer on STO, for which the easy axis is always in film plane. Different from LSMO, the easy axis of LSCO is in-plane and is ferromagnetically coupled with LSMO. This distinct magnetic structure could be ascribed to orbital reconstruction due to symmetry-mismatch at interfaces.
Highlights
ABO3-typed transition metal oxides exhibit a wide range of exotic physical properties that arise as a consequence of strong correlations between electron, spin, orbital and lattice
Different from LSMO, the easy axis of LSCO is in-plane and is ferromagnetically coupled with LSMO. This distinct magnetic structure could be ascribed to orbital reconstruction due to symmetry-mismatch at interfaces
The LSMO layer when coupled with LSCO displays an abnormal perpendicular magnetic anisotropy (PMA) at low temperatures, though easy axis of the single LSMO layer lies in film plane
Summary
ABO3-typed transition metal oxides exhibit a wide range of exotic physical properties that arise as a consequence of strong correlations between electron, spin, orbital and lattice. We reported a distinct magnetic structure in La2/3Sr1/3MnO3 (LSMO) film sandwiched between La1/2Sr1/2CoO2.5+δ (LSCO) bilayer grown on (001)-oriented SrTiO3 substrates. The easy axis of the free-LSMO is in-plane, while it is out-of-plane directed for the coupled-LSMO layer.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
