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| Home > Publications database > Atomic-scale structure and formation of antiphase boundaries in α-Li 0.5 Fe 2.5 O 4 thin films on MgAl 2 O 4 (001) substrates > print |
| Home > Publications database > Atomic-scale structure and formation of antiphase boundaries in α-Li 0.5 Fe 2.5 O 4 thin films on MgAl 2 O 4 (001) substrates > print |
| 001 | 837939 | ||
| 005 | 20210129231447.0 | ||
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| 100 | 1 | _ | |a Mi, Shao-Bo |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Atomic-scale structure and formation of antiphase boundaries in α-Li 0.5 Fe 2.5 O 4 thin films on MgAl 2 O 4 (001) substrates |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2017 |b Elsevier Science |
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| 520 | _ | _ | |a The occurrence of antiferromagnetic coupling at antiphase domain boundaries (APBs) of ferromagnetic materials holds potential applications for room-temperature spintronic devices. Here, we report formation mechanism and atomic-scale structure properties of APBs in α-Li0.5Fe2.5O4 thin films on MgAl2O4 (001) substrates investigated by means of aberration-corrected scanning transmission electron microscopy. The APBs in the α-Li0.5Fe2.5O4 films are either conservative or non-conservative. Across the APBs the oxygen sublattice in α-Li0.5Fe2.5O4 is maintained, while the stacking sequence of the cation sublattice is interrupted. The propagation of APBs is found to occur in a complex way within the ferromagnetic films, including the dissociation of APBs and the formation of kinks. Importantly, the density of APBs can be tuned by controlling the thickness of the α-Li0.5Fe2.5O4 films since the APBs bound interfacial dislocations contributing to film-substrate strain relaxation. Our results evidence that the nano-scale APBs in the α-Li0.5Fe2.5O4 films are controllable and stable, which could be promising candidates for applications in nano-spintronic devices. |
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