Piezoelectric response and free-energy instability in the perovskite crystals BaTiO3, PbTiO3, and Pb(Zr,Ti)O3

被引：127

作者：

Budimir, Marko ^{[1
]}

Damjanovic, Dragan ^{[1
]}

Setter, Nava ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Ceram Lab, Inst Mat Sci & Engn, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.73.174106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The question of the origin of the piezoelectric properties enhancement in perovskite ferroelectrics is approached by analyzing the Gibbs free energy of tetragonal BaTiO3, PbTiO3, and Pb(Zr,Ti)O-3 in the framework of the Landau-Ginzburg-Devonshire theory. The flattening of the Gibbs free-energy profile appears as a fundamental thermodynamic process behind the piezoelectric enhancement. The generality of the approach is demonstrated by examining the free-energy flattening and piezoelectric enhancement as a function of composition, temperature, electric field, and mechanical stress. It is shown that the anisotropy of the free-energy flattening is the origin of the anisotropic enhancement of the piezoelectric response, which can occur either by polarization rotation or by polarization contraction. Giant enhancement of the longitudinal piezoelectric response (d(33)proportional to 10(3) pC/N) is predicted in PbTiO3 under uniaxial compression.

引用

页数：6

共 36 条

[1] Domain-size dependence of piezoelectric properties of ferroelectrics [J].

Ahluwalia, R ;

Lookman, T ;

Saxena, A ;

Cao, WW .

PHYSICAL REVIEW B, 2005, 72 (01)

[2] EFFECT OF ELASTIC BOUNDARY-CONDITIONS ON MORPHOTROPIC PB(ZR,TI)O3 PIEZOELECTRICS [J].

AMIN, A ;

NEWNHAM, RE ;

CROSS, LE .

PHYSICAL REVIEW B, 1986, 34 (03) :1595-1598

[3] SIGN NOTATION IN FERROELECTRIC FREE-ENERGY FUNCTIONS [J].

AMIN, A ;

CROSS, LE ;

NEWNHAM, RE .

FERROELECTRICS, 1989, 99 :145-148

[4] A PHENOMENOLOGICAL GIBBS FUNCTION FOR BATIO3 GIVING CORRECT E-FIELD DEPENDENCE OF ALL FERROELECTRIC PHASE-CHANGES [J].

BELL, AJ ;

CROSS, LE .

FERROELECTRICS, 1984, 59 (3-4) :197-203

[5] Electric-field induced polarization paths in Pb(Zr1-xTix)O3 alloys -: art. no. 060103 [J].

Bellaiche, L ;

García, A ;

Vanderbilt, D .

PHYSICAL REVIEW B, 2001, 64 (06) :601031-601034

[6] Finite-temperature properties of Pb(Zr1-xTix)O3 alloys from first principles [J].

Bellaiche, L ;

García, A ;

Vanderbilt, D .

PHYSICAL REVIEW LETTERS, 2000, 84 (23) :5427-5430

[7] Enhancement of the piezoelectric response of tetragonal perovskite single crystals by uniaxial stress applied along the polar axis: A free-energy approach [J].

Budimir, M ;

Damjanovic, D ;

Setter, N .

PHYSICAL REVIEW B, 2005, 72 (06)

[8] Large enhancement of the piezoelectric response in perovskite crystals by electric bias field antiparallel to polarization [J].

Budimir, M ;

Damjanovic, D ;

Setter, N .

APPLIED PHYSICS LETTERS, 2004, 85 (14) :2890-2892

[9] Piezoelectric anisotropy-phase transition relations in perovskite single crystals [J].

Budimir, M ;

Damjanovic, D ;

Setter, N .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (10) :6753-6761

[10] Polar domains in lead titanate films under tensile strain [J].

Catalan, G ;

Janssens, A ;

Rispens, G ;

Csiszar, S ;

Seeck, O ;

Rijnders, G ;

Blank, DHA ;

Noheda, B .

PHYSICAL REVIEW LETTERS, 2006, 96 (12) :1-4

← 1 2 3 4 →