en
Scientific article
Open access
English

X-ray study on the lattice strains of ferroelectric iron iodine boracite Fe3B7O13I

Published inPhysical review. B, Condensed matter and materials physics, vol. 1, no. 9, p. 3801-3808
Publication date1970
Abstract

The accurate lattice parameters and the extremely small lattice strains of Fe I boracite, Fe3B7O13I, have been successfully measured over the paraelec. and the ferroelec. regions by using special x-ray diffraction methods. The spontaneous strains in the ferroelec. state could be sepd. into 2 parts, a linear strain (pure shear) and quadratic ones (electrostrictions). It is a conspicuous feature of the electromech. properties of Fe2B7O13I that the electrostrictions prevail over the linear strain induced through a torsional piezoelec. const. b36 of the paraelec. phase. The electrostrictive consts. are approx. 2 orders of magnitude larger than those of KH2PO4. Another phase transformation at a lower temp. was disclosed by the present diffractometry. At this temp., a special rhombohedral lattice is formed, and the piezo-elec. const. b36 vanishes.

Keywords
  • Electrostriction
  • Piezoelectricity
  • Lattice strain iron iodine boracite
Affiliation Not a UNIGE publication
Citation (ISO format)
KOBAYASHI, Jinzo et al. X-ray study on the lattice strains of ferroelectric iron iodine boracite Fe<sub>3</sub>B<sub>7</sub>O<sub>13</sub>I. In: Physical review. B, Condensed matter and materials physics, 1970, vol. 1, n° 9, p. 3801–3808.
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
  • PID : unige:32934
ISSN of the journal1098-0121
510views
330downloads

Technical informations

Creation12/17/2013 7:01:00 PM
First validation12/17/2013 7:01:00 PM
Update time03/14/2023 8:48:53 PM
Status update03/14/2023 8:48:53 PM
Last indexation01/16/2024 1:50:39 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack