Polar and chemical states at a nanometer scale in a PbSc1/2Nb1/2O3-PbTiO3 system investigated by Raman spectroscopy

被引：30

作者：

Haumont, R ^{[1
]}

Gemeiner, P

Dkhil, B

Kiat, JM

Bulou, A

机构：

[1] Ecole Cent Paris, CNRS, UMR8580, Grande Voie Vignes,Lab Struct Proprietes & Modeli, F-92295 Chatenay Malabry, France

[2] CE Saclay, Leon Brillouin Lab, CNRS, UMR12, F-91191 Gif Sur Yvette, France

[3] Univ Maine, Lab Phys Etat Condensee, Orono, ME 04469 USA

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.73.104106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the whole phase diagram of PbSc1/2Nb1/2O3-PbTiO3 (PSN-PT) solid solution by Raman scattering and compared the results to our recent x-ray and theoretical study on this system [R. Haumont , Phys. Rev. B 71, 104106 (2005)]. Changes in the vibration bands associated to the sequence of phase transitions R3m-Cm-Pm-P4mm by doping PSN with Ti4+ were evidenced, especially between the two monoclinic phases. The detailed analysis also pointed out that the monoclinic order probably already exists into the rhombohedral and the tetragonal phases on a local scale which makes the morphotropic phase region (MPR) more extended than it was reported. Moreover, besides the polar states this Raman analysis evidences the strong chemical inhomogeneities existing on a nanometer scale in such relaxor-based system such as the Ti-rich and Sc/Nb-rich regions.

引用

页数：5

共 32 条

[1]

AHTAR M, 2005, PHYS REV B, V71, P4102

[2] OPTICAL STUDIES OF VIBRATIONAL PROPERTIES OF DISORDERED SOLIDS [J].

BARKER, AS ;

SIEVERS, AJ .

REVIEWS OF MODERN PHYSICS, 1975, 47 :S1-S179

[3] 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

[4] 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

[5] HARD MODE RAMAN-SPECTROSCOPY AND ITS APPLICATION TO FERROELASTIC AND FERROELECTRIC PHASE-TRANSITIONS [J].

BISMAYER, U .

PHASE TRANSITIONS, 1990, 27 (04) :211-267

[6] LATTICE MODES IN FERROELECTRIC PEROVSKITES - PBTIO3 [J].

BURNS, G ;

SCOTT, BA .

PHYSICAL REVIEW B, 1973, 7 (07) :3088-3101

[7] Effect of high pressure on the Pb(Mg1/3Nb2/3)O3-PbTiO3 solid solution:: A Raman scattering investigation -: art. no. 134114 [J].

Chaabane, B ;

Kreisel, J ;

Bouvier, P ;

Lucazeau, G ;

Dkhil, B .

PHYSICAL REVIEW B, 2004, 70 (13) :134114-1

[8] A STRUCTURAL MODEL FOR THE RELAXOR PBMG1/3NB2/3O3 AT 5-K [J].

DEMATHAN, N ;

HUSSON, E ;

CALVARIN, G ;

GAVARRI, JR ;

HEWAT, AW ;

MORELL, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (42) :8159-8171

[9] Local and long range polar order in the relaxor-ferroelectric compounds PbMg1/3Nb2/3O3 and PbMg0.3Nb0.6Ti0.1O3 -: art. no. 024104 [J].

Dkhil, B ;

Kiat, JM ;

Calvarin, G ;

Baldinozzi, G ;

Vakhrushev, SB ;

Suard, E .

PHYSICAL REVIEW B, 2002, 65 (02) :1-8

[10] Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics [J].

Fu, HX ;

Cohen, RE .

NATURE, 2000, 403 (6767) :281-283

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