Heteroepitaxial growth of Sr1.8Ca0.2NaNb5O15/Li0.25Ni0.75O/MgO by pulsed laser deposition

W. C. Liu, Y. B. Yao, X. S. Wu, F. M. Zhang, C. L. Mak

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

High quality Sr1.8Ca0.2NaNb5O15/Li0.25Ni0.75O (SCNN/LNO) epitaxial heterostructures on (100) MgO substrates have been fabricated by pulsed laser deposition. X-ray diffraction analysis confirmed that the bilayer films possess an (001) orientation normal to the substrate surface. The LNO layer with smooth surface and good semiconductor behavior served as an ideal bottom electrode in the metal-insulator-semiconductor structure and an excellent template for epitaxial growth of SCNN thin film. Our results show that SCNN films with smoother surface, better (001) epitaxial orientation and better waveguide quality can be obtained by controlling the morphology of the LNO layer in a two-step deposition process.
Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalThin Solid Films
Volume594
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Epitaxial growth
  • Lithium nickel oxide
  • Pulsed-laser deposition
  • Strontium calcium sodium niobate
  • Two-step deposition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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