journal article·2020-05-01Open access

Synthesis of single-crystal La0.67Sr0.33MnO3 freestanding films with different crystal-orientation

Zengxing Lu, Jingwu Liu, Jiatai Feng, Xuan Zheng, Li-hong Yang, Chen Ge, Kui-juan Jin, Zhiming Wang, Run-Wei Li

APL Materials· Volume 8· Issue 5

Abstract

We report the synthesis of single-crystal La0.67Sr0.33MnO3 (LSMO) freestanding films with different crystal orientations. By using pulsed laser deposition, water soluble perovskite-like sacrificial layers Sr3Al2O6 (SAO) followed by LSMO films are grown on differently oriented SrTiO3 substrates. Freestanding LSMO films with different orientations are obtained by etching the SAO in pure water. All the freestanding films show room-temperature ferromagnetism and metallicity, independent of the crystal orientation. Intriguingly, the Curie temperature (TC) of the freestanding films is increased due to strain relaxation after releasing from the substrates. Our results provide an additional degree of freedom to tailor the properties of freestanding perovskite oxide heterostructures by crystal orientation and an opportunity to further integrate different oriented films together.
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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Advanced Condensed Matter Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences 1 , Ningbo 315201, China

Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences 2 , Ningbo 315201, China

Nano Science and Technology Institute, University of Science and Technology of China 3 , Hefei 230026, China

New Materials Institute, The University of Nottingham Ningbo China 4 , Ningbo 315100, China

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences 5 , Beijing 100190, China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 6 , Beijing 100049, China

Funding

National Key Research and Development Program of China · Thousand Young Talents Program of China · 3315 Program of Ningbo · China Postdoctoral Science Foundation · Ningbo Natural Science Foundation · National Natural Science Foundation of China

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