Origin of the High Piezoelectric Response in PbZr{sub 1-x}Ti{sub x}O{sub 3}

Journal Article · Mon Jun 05 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.5423· OSTI ID:20216799

Guo, R ^[1]; Cross, L E ^[1]; Park, S-E ^[1]; Noheda, B ^[2]; Cox, D E ^[3]; Shirane, G ^[3]

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1. Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802-4800 (United States)
2. Departamento de Fisica de Materiales, Universidad Autonoma de Madrid, 28049 Madrid, (Spain)
3. Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

High resolution x-ray powder diffraction measurements on poled PbZr{sub 1-x} Ti{sub x}O {sub 3} (PZT) ceramic samples close to the rhombohedral-tetragonal phase boundary (the so-called morphotropic phase boundary) have shown that for both rhombohedral and tetragonal compositions the piezoelectric elongation of the unit cell does not occur along the polar directions but along those directions associated with the monoclinic distortion. This work provides the first direct evidence for the origin of the very high piezoelectricity in PZT. (c) 2000 The American Physical Society.

• OSTI ID: 20216799
• Journal Information: Physical Review Letters, Vol. 84, Issue 23; Other Information: PBD: 5 Jun 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PZT
PIEZOELECTRICITY
X-RAY DIFFRACTION
PHASE DIAGRAMS
FERROELECTRIC MATERIALS
CHEMICAL COMPOSITION
SYNCHROTRON RADIATION
DILATOMETRY
STRAINS
EXPERIMENTAL DATA