The elastic and electromechanical properties of BaTiO{sub 3} single crystal through the ferroelectric transition

Conference · Thu Jul 01 04:00:00 EDT 1993

OSTI ID:10189286

Li, Z; Grimsditch, M; Chan, S K

Using Brillouin scattering and impedance methods, the elastic, piezoelectric and dielectric properties have been determined for monodomain single crystal BaTiO{sub 3} from 23 to 160C. In the cubic phase (T> 130C) only the compressional elastic constant C{sub 11} exhibits partial softening of about 6% upon cooling. During the tetragonal to cubic phase transition, most elastic constants sow discontinuous changes; either stiffening or softening. These and other results are discussed in terms of precursive effects through the electromechanical interaction of the ferroelectric phase transformation.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10189286
• Report Number(s): ANL/MSD/CP--78506; CONF-930852--3; ON: DE94001437
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606
BARIUM COMPOUNDS
BRILLOUIN EFFECT
DIELECTRIC PROPERTIES
ELASTICITY
FERROELECTRIC MATERIALS
IMPEDANCE
MONOCRYSTALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PIEZOELECTRICITY
SOUND WAVES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TITANATES