Critical property in relaxor-PbTiO3 single crystals - Shear piezoelectric response

Fei Li, Shujun Zhang, Zhuo Xu, Xiaoyong Wei, Thomas R. Shrout

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The shear piezoelectric behavior in relaxor-PbTiO3 (PT) single crystals is investigated with regard to the crystal phase. High levels of shear piezoelectric activity, d15 or d24 >2000 pC N -1, are observed for single-domain rhombohedral (R), orthorhombic (O), and tetragonal (T) relaxor-PT crystals. The high piezoelectric response is attributed to a flattening of the Gibbs free energy at compositions close to the morphotropic phase boundaries, where polarization rotation is easily accomplished by applying a perpendicular electric field. The shear piezoelectric behavior of perovskite ferroelectric crystals is discussed with respect to ferroelectric-ferroelectric phase transitions and the dc bias field using a phenomenological approach. The relationship between the single-domain shear piezoelectric response and piezoelectric activities in domain-engineered configurations is also given in this paper. From an application viewpoint, the temperature and ac-field drive stability for shear piezoelectric responses are investigated. A temperature-independent shear piezoelectric response (d 24, in the range of -50 °C to the O-T phase-transition temperature) is thermodynamically expected and experimentally confirmed in orthorhombic relaxor-PT crystals; a relatively high ac-field drive stability (5 kV cm-1) is obtained in manganese-modified relaxor-PT crystals. For all thickness shear vibration modes, the mechanical quality factor Qs are less than 50, corresponding to the facilitated polarization rotation. The shear piezoelectric behavior in relaxor-PbTiO3 (PT) single crystals is systematically investigated with regard to the crystal phase. High levels of shear piezoelectric activity, d15 or d24 >2000 pC N-1, are observed for single-domain rhombohedral (R), orthorhombic (O), and tetragonal (T) relaxor-PT crystals. These properties are investigated with respect to the temperature and electric field. The results demonstrate that the single-domain relaxor-PbTiO3 crystals are promising materials for high-performance transducers.

Original languageEnglish (US)
Pages (from-to)2118-2128
Number of pages11
JournalAdvanced Functional Materials
Volume21
Issue number11
DOIs
StatePublished - Jun 7 2011

Fingerprint

Single crystals
shear
Crystals
single crystals
crystals
Ferroelectric materials
Phase transitions
Electric fields
Polarization
Phase boundaries
Gibbs free energy
Manganese
electric fields
flattening
Perovskite
polarization
Superconducting transition temperature
Transducers
Temperature distribution
manganese

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Li, Fei ; Zhang, Shujun ; Xu, Zhuo ; Wei, Xiaoyong ; Shrout, Thomas R. / Critical property in relaxor-PbTiO3 single crystals - Shear piezoelectric response. In: Advanced Functional Materials. 2011 ; Vol. 21, No. 11. pp. 2118-2128.
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Critical property in relaxor-PbTiO3 single crystals - Shear piezoelectric response. / Li, Fei; Zhang, Shujun; Xu, Zhuo; Wei, Xiaoyong; Shrout, Thomas R.

In: Advanced Functional Materials, Vol. 21, No. 11, 07.06.2011, p. 2118-2128.

Research output: Contribution to journalArticle

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