Oxygen-vacancy-induced atomic and electronic reconstructions in magnetic Sr(Ti0.875Fe0.125)O3-δ thin films

Yi Liang; Zhongshen Luo; Sihui Wu; Yang Yang; Yi Qin; Shuyang Wu; Yanda Ji; Hao Lu; Guozhen Liu; Yucheng Jiang; Jun Wang; Hao Yang; Run Zhao; Chunlan Ma; Ju Gao

doi:10.1088/2053-1591/aba6c1

Materials Research Express (Jan 2020)

Oxygen-vacancy-induced atomic and electronic reconstructions in magnetic Sr(Ti0.875Fe0.125)O3-δ thin films

Yi Liang,
Zhongshen Luo,
Sihui Wu,
Yang Yang,
Yi Qin,
Shuyang Wu,
Yanda Ji,
Hao Lu,
Guozhen Liu,
Yucheng Jiang,
Jun Wang,
Hao Yang,
Run Zhao,
Chunlan Ma,
Ju Gao

Affiliations

Yi Liang: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Zhongshen Luo: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Sihui Wu: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Yang Yang: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Yi Qin: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Shuyang Wu: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Yanda Ji: ORCiD; Department of Applied Physics, Nanjing University of Aeronautics and Astronautics , Nanjing 210016, People’s Republic of China
Hao Lu: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Guozhen Liu: ORCiD; Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Yucheng Jiang: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Jun Wang: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Hao Yang: Department of Applied Physics, Nanjing University of Aeronautics and Astronautics , Nanjing 210016, People’s Republic of China
Run Zhao: ORCiD; Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Chunlan Ma: Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology , Suzhou 215009, People’s Republic of China
Ju Gao: School of Optoelectronic Engineering, Zaozhuang University , Zaozhuang 277160, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/aba6c1
Journal volume & issue: Vol. 7, no. 7
p. 076105

Abstract

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The atomic and electronic structures have been investigated for the multiferroic behavior in the perovskite oxides, which also can be tuned by oxygen vacancy for enhancing properties. Here epitaxial Sr(Ti _0.875 Fe _0.125 )O _3- _δ thin films were deposited on (001) SrTiO _3 substrates by pulsed laser deposition and were post-annealed in an oxygen atmosphere. We found that the oxygen vacancies formed in high vacuum are the source of the macroscopic crystal distortion as the growth strain along out-of-plane . Moreover, it was determined that the full-filled Fe 3 d states induced by oxygen vacancy effect are responsible for the decreased magnetization. This work demonstrates that the oxygen vacancy can both lead to atomic and electronic reconstructions in the perovskite films for manipulating ferroic properties.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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