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Title: Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films

Journal Article · · Science
 [1];  [1];  [1];  [2];  [3];  [4];  [1];  [5];  [5];  [5];  [6]
  1. Chinese Academy of Sciences (CAS), Beijing (China). Shenyang National Lab. for Materials Science
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  3. National Academy of Sciences of Ukraine (NASU), Kiev (Ukraine). Inst. of Physics
  4. National Academy of Sciences of Ukraine (NASU), Kiev (Ukraine). Inst. for Problems of Materials Sciences
  5. Chinese Academy of Sciences (CAS), Shenyang (China). Shenyang National Lab. for Materials Science
  6. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; National Univ. of Singapore (Singapore). Dept. of Materials Science and Engineering

Nanoscale ferroelectrics are expected to exhibit various exotic domain configurations, such as the full flux-closure pattern that is well known in ferromagnetic materials. Here we observe not only the atomic morphology of the flux-closure quadrant but also a periodic array of flux closures in ferroelectric PbTiO3 films, mediated by tensile strain on a GdScO3 substrate. Using aberration-corrected scanning transmission electron microscopy, we directly visualize an alternating array of clockwise and counterclockwise flux closures, whose periodicity depends on the PbTiO3 film thickness. In the vicinity of the core, the strain is sufficient to rupture the lattice, with strain gradients up to 109 per meter. We found engineering strain at the nanoscale may facilitate the development of nanoscale ferroelectric devices.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725; 51231007; 51171190; 2014CB921002; 2009CB623705
OSTI ID:
1265480
Journal Information:
Science, Vol. 348, Issue 6234; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 384 works
Citation information provided by
Web of Science

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Torsion-induced vortex switching and skyrmion-like state in ferroelectric nanodisks journal October 2018
A Coherently Strained Monoclinic [111]PbTiO 3 Film Exhibiting Zero Poisson's Ratio State journal June 2019
BiFeO 3 nanorings synthesized via AAO template-assisted pulsed laser deposition and ion beam etching journal January 2017
Mixture domain states in PbTiO 3 film with potentials for functional application journal June 2019
Control of Domain Structures in Multiferroic Thin Films through Defect Engineering journal August 2018
Domain Wall Architecture in Tetragonal Ferroelectric Thin Films journal December 2016
Microstructure research for ferroelectric origin in the strained Hf 0.5 Zr 0.5 O 2 thin film via geometric phase analysis journal April 2018
High-density array of ferroelectric nanodots with robust and reversibly switchable topological domain states journal August 2017
Room-temperature ferroelectricity in MoTe2 down to the atomic monolayer limit journal April 2019
Three-dimensional polarization vortex configuration evolution in compressed BaTiO 3 /SrTiO 3 superlattice journal December 2019
Fluctuations and Topological Defects in Proper Ferroelectric Crystals journal April 2017
Large Polarization and Susceptibilities in Artificial Morphotropic Phase Boundary PbZr 1− x Ti x O 3 Superlattices journal January 2020
Microstructural Origins of High Piezoelectric Performance: A Pathway to Practical Lead‐Free Materials journal June 2019
Outstanding Piezoelectric Performance in Lead‐Free 0.95(K,Na)(Sb,Nb)O 3 ‐0.05(Bi,Na,K)ZrO 3 Thick Films with Oriented Nanophase Coexistence journal January 2019
Geometry confined polar vertex domains in self-assembled BiFeO 3 nano-islands journal May 2019
Controllable conductive readout in self-assembled, topologically confined ferroelectric domain walls journal July 2018
Emergence of the Vortex State in Confined Ferroelectric Heterostructures journal June 2019
Observation of polar vortices in oxide superlattices journal January 2016
Manipulating topological transformations of polar structures through real-time observation of the dynamic polarization evolution journal October 2019
Room temperature ferroelectricity of hybrid organic–inorganic perovskites with mixed iodine and bromine journal January 2018
Configurable topological textures in strain graded ferroelectric nanoplates journal January 2018
Deterministic Switching of Ferroelectric Bubble Nanodomains journal May 2019
Giant energy density and high efficiency achieved in bismuth ferrite-based film capacitors via domain engineering journal May 2018
Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures text January 2019
Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes journal July 2017
Rotational polarization nanotopologies in BaTiO 3 /SrTiO 3 superlattices journal January 2019
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Giant Uniaxial Strain Ferroelectric Domain Tuning in Freestanding PbTiO 3 Films journal April 2020
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Surface-screening mechanisms in ferroelectric thin films and their effect on polarization dynamics and domain structures journal January 2018
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