Pulsed laser deposition and structural analysis of Ba2Ti6O13 epitaxial thin film on the (210) surface of SrTiO3 single crystal

Ryota Kono; Kohei Hieda; Tomoharu Tokunaga; Ryoma Tamura; Ryotaro Masamura; Yasuyuki Hikita; Kazuhiko Kano; Takahisa Yamamoto

doi:10.35848/1882-0786/ad605d

Applied Physics Express (Jan 2024)

Pulsed laser deposition and structural analysis of Ba2Ti6O13 epitaxial thin film on the (210) surface of SrTiO3 single crystal

Ryota Kono,
Kohei Hieda,
Tomoharu Tokunaga,
Ryoma Tamura,
Ryotaro Masamura,
Yasuyuki Hikita,
Kazuhiko Kano,
Takahisa Yamamoto

Affiliations

Ryota Kono: Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
Kohei Hieda: Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
Tomoharu Tokunaga: Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
Ryoma Tamura: Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
Ryotaro Masamura: Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
Yasuyuki Hikita: ORCiD; Advanced Research & Innovation Center, DENSO CORPORATION, 500-1 Minamiyama, Komenoki-cho, Nisshin, Aichi 470-0111, Japan
Kazuhiko Kano: Advanced Research & Innovation Center, DENSO CORPORATION, 500-1 Minamiyama, Komenoki-cho, Nisshin, Aichi 470-0111, Japan
Takahisa Yamamoto: ORCiD; Department of Materials Design Innovation Engineering, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

DOI: https://doi.org/10.35848/1882-0786/ad605d
Journal volume & issue: Vol. 17, no. 7
p. 075503

Abstract

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A single crystalline thin film of Ba _2 Ti _6 O _13 was grown on the (210) surface of a SrTiO _3 single-crystal substrate by pulsed laser deposition. Scanning transmission electron microscopy shows that the Ba _2 Ti _6 O _13 thin film grew epitaxially with the a -plane, and the b -/ c -axes of Ba _2 Ti _6 O _13 parallel to the (210) plane and the [00 $\bar{1}$ ]/[ $\bar{1}$ 20] directions of SrTiO _3 , respectively. The electrical conductance of the Ba _2 Ti _6 O _13 film was approximately one order larger than that of the reduced SrTiO _3− _δ single crystal with oxygen deficiency of roughly δ = 0.05. Electronic structure calculations predict that Ba _2 Ti _6 O _13 is an n-type degenerate semiconductor with spin-split states primarily of Ti 3d orbital.

Published in Applied Physics Express

ISSN: 1882-0778 (Print); 1882-0786 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1882-0786

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