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Peer-reviewedCC BYMaterials Letters

SrTiO3/BaTiO3 superlattices under tensile strain: structural and ferroelectric properties

  • Lei Yin
  • Abdelilah Lahmar
  • Anna Cantaluppi-Harlé
  • Nathalie Lemée
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Abstract

Rare-earth scandate single-crystal substrates provide an effective route for strain engineering in perovskite oxide thin films. Here, we investigate the influence of tensile lattice strain imposed by DyScO 3 and GdScO 3 substrates on SrTiO 3 -rich BaTiO 3 /SrTiO 3 superlattices. Increasing tensile strain shifts the ferroelectric phase transition toward lower temperatures and reduces the tetragonality of the superlattices. Furthermore, tensile strain produces narrower and more slanted polarization-electric field hysteresis loops, leading to enhanced energy-storage performance.

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Cite

BibTeXRIS
BibTeX
@article{yin2026srtio3batio3,
  title = {{SrTiO3/BaTiO3 superlattices under tensile strain: structural and ferroelectric properties}},
  author = {Lei Yin and Abdelilah Lahmar and Anna Cantaluppi-Harlé and Nathalie Lemée},
  journal = {Materials Letters},
  year = {2026},
  month = sep,
  doi = {10.1016/j.matlet.2026.141633},
  url = {https://u-picardie.hal.science/hal-05758807v1},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - SrTiO3/BaTiO3 superlattices under tensile strain: structural and ferroelectric properties
AU  - Lei Yin
AU  - Abdelilah Lahmar
AU  - Anna Cantaluppi-Harlé
AU  - Nathalie Lemée
PY  - 2026
DA  - 2026/09/22
JO  - Materials Letters
DO  - 10.1016/j.matlet.2026.141633
UR  - https://u-picardie.hal.science/hal-05758807v1
AB  - Rare-earth scandate single-crystal substrates provide an effective route for strain engineering in perovskite oxide thin films. Here, we investigate the influence of tensile lattice strain imposed by DyScO 3 and GdScO 3 substrates on SrTiO 3 -rich BaTiO 3 /SrTiO 3 superlattices. Increasing tensile strain shifts the ferroelectric phase transition toward lower temperatures and reduces the tetragonality of the superlattices. Furthermore, tensile strain produces narrower and more slanted polarization-electric field hysteresis loops, leading to enhanced energy-storage performance.
SN  - 0167-577X
ER  -