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- Bergman, Jan, et al.
(author)
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Indolocarbazoles
- 2001
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In: ADVANCES IN HETEROCYCLIC CHEMISTRY, VOL 80. - 0065-2725 .- 1557-8429. ; 80, s. 1-71
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Research review (other academic/artistic)
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10. |
- Boschker, J. E., et al.
(author)
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In-plane structural order of domain engineered La0.7Sr0.3MnO3 thin films
- 2013
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In: Philosophical Magazine. - : Informa UK Limited. - 1478-6435 .- 1478-6443. ; 93:13, s. 1549-1562
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Journal article (peer-reviewed)abstract
- We present a detailed structural study of tensile-strained La0.7Sr0.3MnO3 thin films. We use the substrate miscut to control the number of rhombohedral variants in the films and study the in-plane order and structural distortions. Using high-resolution X-ray diffraction, we demonstrate that step-edge induced lattice modulations occur in 4-variant films, whereas periodic twinning is the dominant in-plane order for 2-variant films. We show that the in-plane twinning angle is almost completely relaxed. However, the relaxation of shear strain by the out-of-plane twinning angle and the monoclinic distortion is only partial. Furthermore, the film thickness dependence of the domain width reveals that domain formation is a universal mechanism for shear strain relaxation. Finally, we show that the structural response to the transition from the paramagnetic to the ferromagnetic phase of La0.7Sr0.3MnO3 at 345K is smaller in 4-variant films compared to 2-variant films.
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