Direct Observation of Pinning and Bowing of a Single Ferroelectric Domain Wall

Journal Article · Sat May 01 00:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.4106· OSTI ID:341415

Yang, T J; Mohideen, U ^[1]; Gopalan, V ^[2]; Swart, P J ^[3]

---

1. Department of Physics, University of California, Riverside, California 92521 (United States)
2. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
3. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We have made a direct optical observation of pinning and bowing of a single 180{degree} ferroelectric domain wall under a uniform applied electric field using a collection mode near-field scanning optical microscope. The domain wall is observed to curve between the pinning defects, with a radius of curvature determined by the material parameters and the applied electric field. The change in birefringence with applied field is used to infer the orientation of the internal field at the domain wall. {copyright} {ital 1999} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 341415
• Journal Information: Physical Review Letters, Vol. 82, Issue 20; Other Information: PBD: May 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TANTALUM COMPOUNDS
LITHIUM COMPOUNDS
FERROELECTRIC MATERIALS
LITHIUM OXIDES
TANTALATES
DOMAIN STRUCTURE
OPTICAL MICROSCOPY
CRYSTAL DEFECTS
DISLOCATIONS
BIREFRINGENCE