Freestanding Perovskite Oxide Films: Synthesis, Challenges, and Properties

Francesco M. Chiabrera, Shinhee Yun, Ying Li, Rasmus T. Dahm, Haiwu Zhang, Charline K. R. Kirchert, Dennis V. Christensen, Felix Trier, Thomas S. Jespersen, Nini Pryds*

*Corresponding author for this work

Research output: Contribution to journalReviewpeer-review

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In this review paper, recent progress in the fabrication, transfer, and fundamental physical properties of freestanding oxide perovskite thin films is discussed. First, the main strategies for the synthesis and transfer of freestanding perovskite thin films are analyzed. In this initial section, particular attention is devoted to the use of water-soluble (Ca,Sr,Ba)3Al2O6 thin films as sacrificial layers, one of the most promising techniques for the fabrication of perovskite membranes. The main functionalities that have been observed in freestanding perovskite thin films are then reviewed. In doing so, the authors begin by describing the emergence of new phenomena in ultrathin perovskite membranes when released from the substrate. They then move on to a summary of the functional properties that are observed in freestanding perovskite membranes under the application of strain. Indeed, freestanding thin films offer the unique possibility to actively control the strain state far beyond what can be observed with traditional methods, allowing the investigation of the profound interplay between structural and electronic properties in oxides. Overall, this review highlights the potential of oxide-based freestanding thin films to become the preferred platform for the study of novel functionalities in perovskite oxide materials.
Original languageEnglish
Article number2200084
JournalAnnalen der Physik
Issue number9
Number of pages20
Publication statusPublished - 2022


  • Freestanding thin films
  • Lattice strain
  • Perovskite oxides
  • Sacrificial layers
  • Ultrathin membranes


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