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

Research output: Journal PublicationArticlepeer-review

18 Citations (Scopus)
12 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)051105
JournalAPL Materials
Volume8
Issue number5
Early online date5 May 2020
DOIs
Publication statusPublished Online - 5 May 2020

Keywords

  • Crystal orientation
  • Electronic devices
  • Ferromagnetism
  • Heterostructures
  • Perovskites
  • Pulsed laser deposition

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