Interface-induced transition from a cluster glass state to a spin glass state in LaMnO3/BiFeO3 heterostructures
| Autor: | Yu Bai, Wei Liu, Ying Jie Wu, Zhan Jie Wang, Xiao Fei Xiao, Xing Kun Ning, Yong Mei Liang, Xinguo Zhao, Zhidong Zhang |
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| Rok vydání: | 2019 |
| Předmět: |
Spin glass
Materials science Condensed matter physics Oxide Heterojunction 02 engineering and technology General Chemistry Tensile strain Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ion Condensed Matter::Materials Science chemistry.chemical_compound chemistry Physical phenomena Lattice (order) Strain effect Materials Chemistry Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry C. 7:2376-2384 |
| ISSN: | 2050-7534 2050-7526 |
| Popis: | Many novel physical phenomena at the oxide heterointerfaces are expected due to the strong interfacial coupling of spin, orbit, charge and lattice degrees of freedom. Here we report a new interface phenomenon that is the interface-induced transition from a cluster glass state to a spin glass state in LaMnO3/BiFeO3 (LMO/BFO) heterostructures. The charge transfer from Mn ions to Fe ions described as Fe3+ + Mn3+ → Fe2+ + Mn4+ occurs at the interface region of LMO/BFO heterostructures; the LMO layer of a LMO/BFO heterostructure undergoes the out-of-plane tensile strain state, in contrast to the out-of-plane compressive strain state in the LMO films. The interface-induced transition from a cluster glass state to a spin glass state in LMO/BFO heterostructures can be attributed to the combined effects of interfacial charge transfer and strain effect. Our results demonstrate that the low temperature glassy magnetic state of manganites can be effectively manipulated through heterointerfaces. |
| Databáze: | OpenAIRE |
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