Monoclinic crystal structure of polycrystalline Na0.5Bi0.5TiO3

被引：284

作者：

Aksel, Elena ^{[1
]}

Forrester, Jennifer S. ^{[1
]}

Jones, Jacob L. ^{[1
]}

Thomas, Pam A. ^{[1
,2
]}

Page, Katharine ^{[1
,3
]}

Suchomel, Matthew R. ^{[4
]}

机构：

[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

[2] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[3] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA

[4] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 15期

基金：

美国国家科学基金会;

关键词：

PHASE-TRANSITIONS; PEROVSKITES; CERAMICS; SYSTEM; TEM;

D O I：

10.1063/1.3573826

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bismuth-based ferroelectric ceramics are currently under intense investigation for their potential as Pb-free alternatives to lead zirconate titanate-based piezoelectrics. Na0.5Bi0.5TiO3 (NBT), one of the widely studied compositions, has been assumed thus far to exhibit the rhombohedral space group R3c at room temperature. High-resolution powder x-ray diffraction patterns, however, reveal peak splitting in the room temperature phase that evidence the true structure as monoclinic with space group Cc. This peak splitting and Cc space group is only revealed in sintered powders; calcined powders are equally fit to an R3c model because microstructural contributions to peak broadening obscure the peak splitting. (C) 2011 American Institute of Physics. [doi:10.1063/1.3573826]

引用

页数：3

共 23 条

[1]

BARIN I, 2008, THERMOCHEMICAL DATA, pCH12

[2] Comments on Origins of Enhanced Piezoelectric Properties in Ferroelectrics [J].

Damjanovic, Dragan .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2009, 56 (08) :1574-1585

[3]

DAVIES M, J AM CERAM IN PRESS

[4] Reinvestigation of phase transitions in Na0.5Bi0.5TiO3 by TEM.: Part I:: First order rhombohedral to orthorhombic phase transition [J].

Dorcet, V. ;

Trolliard, G. ;

Boullay, P. .

CHEMISTRY OF MATERIALS, 2008, 20 (15) :5061-5073

[5] CLASSIFICATION OF TILTED OCTAHEDRA IN PEROVSKITES [J].

GLAZER, AM .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1972, B 28 (NOV15) :3384-&

[6] Evidence for a non-rhombohedral average structure in the lead-free piezoelectric material Na0.5Bi0.5TiO3 [J].

Gorfman, S. ;

Thomas, P. A. .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2010, 43 :1409-1414

[7] Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3-BaTiO3 piezoceramics [J].

Jo, Wook ;

Daniels, John E. ;

Jones, Jacob L. ;

Tan, Xiaoli ;

Thomas, Pamela A. ;

Damjanovic, Dragan ;

Roedel, Juergen .

JOURNAL OF APPLIED PHYSICS, 2011, 109 (01)

[8] Investigation of the structure and phase transitions in the novel A-site substituted distorted perovskite compound Na0.5Bi0.5TiO3 [J].

Jones, GO ;

Thomas, PA .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 2002, 58 :168-178

[9] Monoclinic structure of unpoled morphotropic high piezoelectric PMN-PT and PZN-PT compounds [J].

Kiat, JM ;

Uesu, Y ;

Dkhil, B ;

Matsuda, M ;

Malibert, C ;

Calvarin, G .

PHYSICAL REVIEW B, 2002, 65 (06) :641061-641064

[10]

Larson A. C., 2004, 86748 LAUR LOS AL NA

← 1 2 3 →