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

Zengxing Lu | Zendy; Chen Liu | Zendy; Jiatai Feng | Zendy; Xuan Zheng | Zendy; Lihong Yang | Zendy; Chen Ge | Zendy; Kuijuan Jin | Zendy; Zhiming Wang | Zendy; RunWei Li | Zendy

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

Author(s) -

Zengxing Lu,

Chen Liu,

Jiatai Feng,

Xuan Zheng,

Lihong Yang,

Chen Ge,

Kuijuan Jin,

Zhiming Wang,

RunWei Li

Publication year - 2020

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.5145029

Subject(s) - materials science , curie temperature , pulsed laser deposition , ferromagnetism , crystal (programming language) , single crystal , perovskite (structure) , oxide , orthorhombic crystal system , nanotechnology , thin film , crystallography , crystal structure , condensed matter physics , metallurgy , chemistry , physics , computer science , programming language

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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