Extreme tensile strain states in La 0.7 Ca 0.3 MnO 3 membranes

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Abstract
Straining an oxide membrane: Perovskite manganites, such as La 0.7 Ca 0.3 MnO 3 , have complex phase diagrams with many competing states. Among the knobs that can be used to control their properties are magnetic field and strain. Hong et al. placed membranes of La 0.7 Ca 0.3 MnO 3 on a flexible polymer layer (see the Perspective by Beekman). Stretching the flexible layer resulted in large strains of up to 8% on the membrane. By varying the magnitude and direction of the strain, the researchers were able to explore the phase diagram of the system and influence its magnetic and transport properties. Science , this issue p. 71 ; see also p. 32
Funding Information
  • U.S. Department of Energy (DE-AC02-76SF00515)
  • U.S. Department of Energy (DE-SC0012375)
  • Air Force Office of Scientific Research (FA9550-18-1-0480)
  • Army Research Office (W911NF-15-1-0017)
  • Gordon and Betty Moore Foundation (GBMF4415)
  • German Science Foundation (CRC TRR80)

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