Extreme strain states in complex oxide membranes

ORAL

Abstract

Freestanding 2D layers provide an unprecedented degree of freedom to control physical properties. The recent advances in the thin film epitaxy of a water-soluble layer enable the synthesis of virtually all types of complex oxides as a macroscale freestanding membrane [1]. Based on this synthetic method, we have developed an on-chip platform of complex oxide membranes for which strain states can be continuously tuned by design. In the example of a colossal magnetoresistance material (La0.7Ca0.3MnO3), we successfully applied biaxial strain up to 5% and induced a dramatic shift in the metal-to-insulator transition in ultrathin manganite membranes. This versatile platform - compatible with magnetotransport, structural characterization, and optical probes - enables a new avenue to study oxide thin films and heterostructures beyond epitaxial strain.

[1] D. Lu, D. J. Baek, S. S. Hong, L. F. Kourkoutis, Y. Hikita, & H. Y. Hwang, Nat. Mater. 15, 1255 (2016).

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Presenters

  • Seung Sae Hong

    Department of Applied Physics, Stanford Institute for Materials and Energy Sciences, Stanford University, SLAC National Accelerator Laboratory, Applied Physics, Stanford University, Department of Applied Physics, Stanford University, Stanford Univeristy

Authors

  • Seung Sae Hong

    Department of Applied Physics, Stanford Institute for Materials and Energy Sciences, Stanford University, SLAC National Accelerator Laboratory, Applied Physics, Stanford University, Department of Applied Physics, Stanford University, Stanford Univeristy

  • Di Lu

    Department of Physics, Stanford Institute for Materials and Energy Sciences, Stanford University, Department of Physics, Stanford University, Stanford Univeristy, Geballe Laboratory for Advanced Materials, Stanford University

  • Arturas Vailionis

    Stanford University, Geballe Laboratory for Advanced Materials, Stanford University

  • Yasuyuki Hikita

    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, SLAC National Accelerator Laboratory, Stanford institute for materials energy sciences, SLAC National accelerator Laboratory

  • Harold Hwang

    Geballe Laboratory for Advanced Materials, Department of Applied Physics, Stanford University, Stanford, CA, United States, Stanford Institute for Materials and Energy Science, Department of Applied Physics, Stanford University, Department of Applied Physics, Geballe Laboratory for Advanced Materials, Stanford Institute for Materials and Energy Sciences, Stanford University, SLAC National Accelerator, Applied Physics, Stanford University, Stanford Univ, Stanford University, Stanford Univeristy