Work

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

Year: 2026

Type: article

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.

Source: Materials Letters

DOI: 10.1016/j.matlet.2026.141633

Authors: Lei Yin, Abdelilah Lahmar, Anna Cantaluppi-Harlé, Nathalie Lemée

Institutions: Laboratoire de physique de la matière condensée, Université de Picardie Jules Verne

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,870

Funder: Agence Nationale de la Recherche