Large Nonclassical Electrostriction in (Y, Nb)-Stabilized δ-Bi2O3

Nimrod Yavo, Alaric D. Smith, Ori Yeheskel, Sydney Cohen, Roman Korobko, Ellen Wachtel, Peter R. Slater, Igor Lubomirsky

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Classical electrostriction, describing a second-order electromechanical response of insulating solids, scales with elastic compliance, S, and inversely with dielectric susceptibility, ε. This behavior, first noted 20 years ago by Robert Newnham, is shown to apply to a wide range of electrostrictors including polymers, glasses, crystalline linear dielectrics, and relaxor ferroelectrics. Electrostriction in fluorite ceramics of (Y, Nb)-stabilized δ-Bi2O3 is examined with 16%-23% vacant oxygen sites. Given the values of compliance and dielectric susceptibility, the electrostriction coefficients are orders of magnitude larger than those expected from Newnham's scaling law. In ambient temperature nanoindentation measurements, (Y, Nb)-stabilized δ-Bi2O3 displays primary creep. These findings, which are strikingly similar to those reported for Gd-doped ceria, support the suggestion that ion conducting ceramics with the fluorite structure, a large concentration of anion vacancies and anelastic behavior, may constitute a previously unknown class of electrostrictors.

Original languageEnglish
Pages (from-to)1138-1142
Number of pages5
JournalAdvanced Functional Materials
Volume26
Issue number7
DOIs
Publication statusPublished - Feb 16 2016

Fingerprint

Electrostriction
electrostriction
Fluorspar
fluorite
ceramics
magnetic permeability
Scaling laws
Cerium compounds
Nanoindentation
nanoindentation
scaling laws
ambient temperature
Ferroelectric materials
Vacancies
suggestion
Anions
Polymers
Creep
Negative ions
Ions

Keywords

  • delta-phase bismuth oxide
  • elasticity
  • electrostriction
  • point defects

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Large Nonclassical Electrostriction in (Y, Nb)-Stabilized δ-Bi2O3 . / Yavo, Nimrod; Smith, Alaric D.; Yeheskel, Ori; Cohen, Sydney; Korobko, Roman; Wachtel, Ellen; Slater, Peter R.; Lubomirsky, Igor.

In: Advanced Functional Materials, Vol. 26, No. 7, 16.02.2016, p. 1138-1142.

Research output: Contribution to journalArticle

Yavo, N, Smith, AD, Yeheskel, O, Cohen, S, Korobko, R, Wachtel, E, Slater, PR & Lubomirsky, I 2016, 'Large Nonclassical Electrostriction in (Y, Nb)-Stabilized δ-Bi2O3 ', Advanced Functional Materials, vol. 26, no. 7, pp. 1138-1142. https://doi.org/10.1002/adfm.201503942
Yavo N, Smith AD, Yeheskel O, Cohen S, Korobko R, Wachtel E et al. Large Nonclassical Electrostriction in (Y, Nb)-Stabilized δ-Bi2O3 Advanced Functional Materials. 2016 Feb 16;26(7):1138-1142. https://doi.org/10.1002/adfm.201503942
Yavo, Nimrod ; Smith, Alaric D. ; Yeheskel, Ori ; Cohen, Sydney ; Korobko, Roman ; Wachtel, Ellen ; Slater, Peter R. ; Lubomirsky, Igor. / Large Nonclassical Electrostriction in (Y, Nb)-Stabilized δ-Bi2O3 In: Advanced Functional Materials. 2016 ; Vol. 26, No. 7. pp. 1138-1142.
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