X-ray and Neutron Diffraction Investigations of the Structural Phase Transformation Sequence under Electric Field in 0.7Pb(Mg1/3Nb2/3)-0.3PbTiO3 Crystals

Abstract

The structural phase transformations of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (PMN-30%PT) have been studied using x-ray diffraction (XRD) and neutron scattering as a function of temperature and electric field. We observe the phase transformational sequence (i) cubic (C)-> tetragonal (T)-> rhombohedral (R) in the zero-field-cooled (or ZFC) condition; (ii) C->T-> monoclinic (MC)-> monoclinic (MA) in the field-cooled (or FC) condition; and (iii) R->MA->MC->T with increasing field at fixed temperature beginning from the ZFC condition. Upon removal of the field, the MA phase is stable at room temperature in the FC condition, and also in the ZFC condition with increasing field. Several subtleties of our findings are discussed based on results from thermal expansion and dielectric measurements, including (i) the stability of the MA phase; (ii) a difference in lattice parameters between inside bulk and outside layer regions; and (iii) the diffuse nature of the MA and MC phase transition.

9 pages, 10 figures

References in corpus (16)

• Origin of the high piezoelectric response in PbZr(1-x)TixO3
• A monoclinic ferroelectric phase in the Pb(Zr1-xTix)O3 solid solution
• A tetragonal-to-monoclinic phase transition in a ferroelectric perovskite: the structure of PbZr(0.52)Ti(0.48)O3
• Phase diagram of the ferroelectric-relaxor (1-x)PbMg(1/3)Nb(2/3)O3-xPbTiO3
• Polarization rotation via a monoclinic phase in the piezoelectric 92%PbZn1/3Nb2/3O3-8%PbTiO3
• Monoclinic and triclinic phases in higher-order Devonshire theory
• Finite-temperature properties of PZT alloys from first principles
• Monoclinic phase in the relaxor-based piezo-/ ferroelectric Pb(Mg${}_{1/3}$Nb${}_{2/3})O_3$-PbTiO${}_3$ system
• Evidence for $M_B$ and $M_C$ phases in the morphotropic phase boundary region of $(1-x)[Pb(M{g}_{1/3}N{b}_{2/3})O_3]-xPbTi{O}_3$ : A Rietveld study
• Phase diagram of the relaxor ferroelectric (1-x)PbZn(1/3)Nb(2/3)O3-xPbTiO3
• Universal Phase Diagram for High-Piezoelectric Perovskite Systems
• Monoclinic structure of unpoled morphotropic high piezoelectric (PbMg1/3Nb2/3O3)0.65-(PbTiO3)0.35 and (PbZn1/3Nb2/3O3)0.91-(PbTiO3)0.09 compounds
• Electric-field induced phase transitions in rhombohedral PZN-xPT
• Neutron Diffraction Study of Field Cooling Effects on Relaxor Ferroelectrics Pb[(Zn_{1/3} Nb_{2/3})_{0.92} Ti_{0.08}] O_{3}
• Ground State of Relaxor Ferroelectric $Pb(Z{n}_{1/3}N{b}_{2/3})O_3$
• Neutron Diffraction Study of the Irreversible R-MA-MC Phase Transition in Single Crystal Pb[(Zn1/3Nb2/3)1-xTix]O3

Cited by in corpus (11)

• Phase instability induced by polar nanoregions in a relaxor ferroelectric system
• Stress-induced R-MA-MC-T symmetry changes in BiFeO3 films
• Low-Symmetry Monoclinic Phases and Polarization Rotation Path Mediated By Epitaxial Strain in Multiferroic BiFeO3 Thin Films
• Intermediate ferroelectric orthorhombic and monoclinic MB phases in [110]- electric field cooled Pb(Mg1/3Nb2/3)O3-30%PbTiO3 crystals
• Fragile phase stability in (1-x)Pb(Mg1/3Nb2/3O3)-xPbTiO3 crystals: A comparisons of [001] and [110] field-cooled phase diagrams
• Ab initio linear response and frozen phonons for the relaxor PMN (PbMg1/3Nb2/3O3)
• Competing orders in PZN-xPT and PMN-xPT relaxor ferroelectrics
• Structural phase transformation and phase boundary/stability studies of field-cooled Pb(Mg1/3Nb2/3O3)-32%PbTiO3 crystals
• Dynamic origin of the morphotropic phase boundary - Soft modes and phase instability in 0.68Pb(Mg1/3Nb2/3O3)-0.32PbTiO3
• On the photovoltaic effect asymmetry in ferroelectrics
• Microscopic piezoelectric behavior of clamped and membrane (001) PMN-30PT thin films