Size-Induced Ferroelectricity in Antiferroelectric Oxide Membranes.

Autor: Xu R; Department of Applied Physics, Stanford University, Stanford, CA, 94305, USA.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.; Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27606, USA., Crust KJ; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.; Department of Physics, Stanford University, Stanford, CA, 94305, USA., Harbola V; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.; Department of Physics, Stanford University, Stanford, CA, 94305, USA., Arras R; CEMES, Université de Toulouse, CNRS, UPS, 29 rue Jeanne Marvig, F-31055, Toulouse, France., Patel KY; Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR, 72701, USA., Prosandeev S; Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR, 72701, USA., Cao H; Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA., Shao YT; Department of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA.; Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA., Behera P; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA., Caretta L; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.; School of Engineering, Brown University, Providence, RI, 02912, USA., Kim WJ; Department of Applied Physics, Stanford University, Stanford, CA, 94305, USA.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA., Khandelwal A; Department of Applied Physics, Stanford University, Stanford, CA, 94305, USA.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA., Acharya M; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA., Wang MM; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Liu Y; Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27606, USA., Barnard ES; The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA., Raja A; The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA., Martin LW; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA., Gu XW; Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA., Zhou H; X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA., Ramesh R; Department of Materials Science and Nanoengineering, Department of Physics and Astronomy, Rice University, Houston, TX, 77251, USA., Muller DA; Department of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA., Bellaiche L; Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR, 72701, USA., Hwang HY; Department of Applied Physics, Stanford University, Stanford, CA, 94305, USA.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2023 Apr; Vol. 35 (17), pp. e2210562. Date of Electronic Publication: 2023 Mar 19.
DOI: 10.1002/adma.202210562
Abstrakt: Despite extensive studies on size effects in ferroelectrics, how structures and properties evolve in antiferroelectrics with reduced dimensions still remains elusive. Given the enormous potential of utilizing antiferroelectrics for high-energy-density storage applications, understanding their size effects will provide key information for optimizing device performances at small scales. Here, the fundamental intrinsic size dependence of antiferroelectricity in lead-free NaNbO 3 membranes is investigated. Via a wide range of experimental and theoretical approaches, an intriguing antiferroelectric-to-ferroelectric transition upon reducing membrane thickness is probed. This size effect leads to a ferroelectric single-phase below 40 nm, as well as a mixed-phase state with ferroelectric and antiferroelectric orders coexisting above this critical thickness. Furthermore, it is shown that the antiferroelectric and ferroelectric orders are electrically switchable. First-principle calculations further reveal that the observed transition is driven by the structural distortion arising from the membrane surface. This work provides direct experimental evidence for intrinsic size-driven scaling in antiferroelectrics and demonstrates enormous potential of utilizing size effects to drive emergent properties in environmentally benign lead-free oxides with the membrane platform.
(© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: