Ferroelectric-Paraelectric Transition in BiFeO3: Crystal Structure of the Orthorhombic β Phase

被引：279

作者：

Arnold, Donna C. ^{[1
]}

Knight, Kevin S. ^{[2
]}

Morrison, Finlay D. ^{[1
]}

Lightfoot, Philip ^{[1
]}

机构：

[1] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

POLYCRYSTALLINE BIFEO3; NEUTRON-DIFFRACTION; MAGNETIC-PROPERTIES; TEMPERATURE; MULTIFERROICS;

D O I：

10.1103/PhysRevLett.102.027602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A detailed investigation using variable temperature powder neutron diffraction demonstrates that BiFeO3 undergoes a phase transition from the ferroelectric alpha phase (rhombohedral, R3c) to a paraelectric beta phase (orthorhombic, Pbnm) between 820 degrees C and 830 degrees C. Coexistence of both phases over a finite temperature interval, together with abrupt changes in key structural parameters, confirms that the transition is first order. The beta phase corresponds to a GdFeO3-type perovskite structure.

引用

页数：4

共 29 条

[1] PREPARATION OF SINGLE-PHASE POLYCRYSTALLINE BIFEO3 [J].

ACHENBACH, GD ;

JAMES, WJ ;

GERSON, R .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1967, 50 (08) :437-+

[2] Multiferroics:: Towards a magnetoelectric memory [J].

Bibes, Manuel ;

Barthelemy, Agnes .

NATURE MATERIALS, 2008, 7 (06) :425-426

[3] Phase segregation in the Gd1-xSrxFeO3-δ series [J].

Blasco, J ;

Stankiewicz, J ;

García, J .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (03) :898-908

[4] PRECISION DETERMINATION OF LATTICE PARAMETERS AND COEFFICIENTS OF THERMAL EXPANSION OF BIFEO3 [J].

BUCCI, JD ;

ROBERTSO.BK ;

JAMES, WJ .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1972, 5 (JUN1) :187-&

[5] LOW-TEMPERATURE PHASE-TRANSITION OF SODIUM NIOBATE AND STRUCTURE OF LOW-TEMPERATURE PHASE, N [J].

DARLINGTON, CNW ;

MEGAW, HD .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 1973, 29 (OCT15) :2171-+

[6]

*EPAPS, EPRLTAO102090903

[7]

*FACHINFORMATIONSZ, 2007, INORGANIC CRYSTAL ST

[8] TEMPERATURE-DEPENDENCE OF THE CRYSTAL AND MAGNETIC-STRUCTURES OF BIFEO3 [J].

FISCHER, P ;

POLOMSKA, M ;

SOSNOWSKA, I ;

SZYMANSKI, M .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (10) :1931-1940

[9] Phonon anomalies and the ferroelectric phase transition in multiferroic BiFeO3 [J].

Haumont, R ;

Kreisel, J ;

Bouvier, P ;

Hippert, F .

PHYSICAL REVIEW B, 2006, 73 (13)

[10] Phase stability and structural temperature dependence in powdered multiferroic BiFeO3 [J].

Haumont, R. ;

Kornev, Igor A. ;

Lisenkov, S. ;

Bellaiche, L. ;

Kreisel, J. ;

Dkhil, B. .

PHYSICAL REVIEW B, 2008, 78 (13)

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