Concurrent magnetic and structural reconstructions at the interface of (111)-oriented L a0.7 S r0.3Mn O3/LaFe O3
| Autor: | Hallsteinsen, I, Moreau, M, Grutter, A, Nord, M, Vullum, PE, Gilbert, DA, Bolstad, T, Grepstad, JK, Holmestad, R, Selbach, SM, N'Diaye, AT, Kirby, BJ, Arenholz, E, Tybell, T |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Zdroj: | Hallsteinsen, I; Moreau, M; Grutter, A; Nord, M; Vullum, PE; Gilbert, DA; et al.(2016). Concurrent magnetic and structural reconstructions at the interface of (111)-oriented L a0.7 S r0.3Mn O3/LaFe O3. Physical Review B, 94(20). doi: 10.1103/PhysRevB.94.201115. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/29p7v0wx Physical Review B, vol 94, iss 20 |
| Popis: | © 2016 American Physical Society. We observe an induced switchable magnetic moment of 1.6±0.40μB/Fe for the nominally antiferromagnetic LaFeO3 extending two to four interface layers into the non-charge transfer system La0.7Sr0.3MnO3/LaFeO3/SrTiO3(111). Simultaneously a mismatch of oxygen octahedra rotations at the interface implies an atomic reconstruction of reduced symmetry at the interface, reaching two to five layers into LaFeO3. Density functional theory of a structure with atomic reconstruction and different correlation strength shows a ferrimagnetic state with a net Fe moment at the interface. Together these results suggest that engineered oxygen octahedra rotations, affecting the local symmetry, affect electron correlations and can be used to promote magnetic properties. |
| Databáze: | OpenAIRE |
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