Atomically Precise Interfacial Control of Magnetic States
A HRSTEM image of SrIrO3-LSMO superlattices grown by laser MBE; the inset is a polar plot of the magnetoresistance showing the effect of insertion of 1 unit cell of SrIrO3 on the easy axis of the LSMO layer.
Demonstrated the use of heteroepitaxy in controlling spin-orbit interactions in oxide quantum materials.
Significance and Impact
Provide pathways to a new generation of spin-orbit coupled materials.
- Manipulating magnetic anisotropy of ferromagnetic La2/3Sr1/3MnO3 by digitally inserting monolayers of SrIrO3
- Polar plot shows a 45-degree phase shift of the in-plane magnetic anisotropy in the La2/3Sr1/3MnO3 layer
- Origin: A novel spin-orbit entangled magnetic state with an emergent orbital momentum in SrIrO3