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arXiv · 2105.02941

Tuning magnetic and optical properties through strain in epitaxial LaCrO3 thin films

Yogesh Sharma·Binod Paudel·Jegon Lee·Woo Seok Choi·Zhenzhong Yang·Han Wang·Yingge Du·Kyeong Tae Kang·Ghanshyam Pilania·Aiping Chen
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Abstract

We report on the effect of epitaxial strain on magnetic and optical properties of perovskite LaCrO3 (LCO) single crystal thin films. Epitaxial LCO thin films are grown by pulsed laser deposition on proper choice of substrates to impose different strain states. A combined experimental and theoretical approach is used to demonstrate the direct correlation between lattice-strain and functional properties. The magnetization results show that the lattice anisotropy plays a critical role in controlling the magnetic behavior of LCO films. The strain induced tetragonality in the film lattice strongly affects the optical transitions and charge transfer gap in LCO. This study opens new possibilities to tailoring the functional properties of LCO and related materials by strain engineering in epitaxial growth.

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Yogesh Sharma, Binod Paudel, Jegon Lee, Woo Seok Choi, Zhenzhong Yang, Han Wang, Yingge Du, Kyeong Tae Kang, Ghanshyam Pilania, Aiping Chen. 2021-05-06. Tuning magnetic and optical properties through strain in epitaxial LaCrO3 thin films. https://doi.org/10.1063/5.0058678

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