Moiré Engineering of Electronic Phenomena in Correlated Oxides
arXiv:1907.11566 · doi:10.1038/s41567-020-0865-1
Abstract
Moiré engineering has recently emerged as a capable approach to control quantum phenomena in condensed matter systems. In van der Waals heterostructures, moiré patterns can be formed by lattice misorientation between adjacent atomic layers, creating long range electronic order. To date, moiré engineering has been executed solely in stacked van der Waals multilayers. Herein, we describe our discovery of electronic moiré patterns in films of a prototypical magnetoresistive oxide La0.67Sr0.33MnO3 (LSMO) epitaxially grown on LaAlO3 (LAO) substrates. Using scanning probe nano-imaging, we observe microscopic moiré profiles attributed to the coexistence and interaction of two distinct incommensurate patterns of strain modulation within these films. The net effect is that both electronic conductivity and ferromagnetism of LSMO are modulated by periodic moiré textures extending over mesoscopic scales. Our work provides an entirely new route with potential to achieve spatially patterned electronic textures on demand in strained epitaxial materials.
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Cited by in corpus (14)
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- Electrically tunable moiré magnetism in twisted double bilayers of chromium triiodide
- Hybrid Machine Learning for Scanning Near-field Optical Spectroscopy
- Trigonal Symmetry Breaking and its Electronic Effects in Two-Dimensional Dihalides and Trihalides
- Moiré Engineering of Spin-Orbit Coupling in Twisted Platinum Diselenide
- Electronically phase separated nano-network in antiferromagnetic insulating LaMnO3/PrMnO3/CaMnO3 tricolor superlattice
- Delamination-assisted ultrafast wrinkle formation in a freestanding film
- Controllable magnetic domains in twisted trilayer magnets
- Deteriorated Interlayer Coupling in Twisted Bilayer Cobaltites
- Moiré Fringes in Conductive Atomic Force Microscopy
- Electronic procrystalline state in moire structures
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- Observation of Anomalous Moiré Patterns