Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi1/2(Na0.78K0.22)1/2TiO3 relaxors

被引：94

作者：

Han, Hyoung-Su ^{[1
]}

Jo, Wook ^{[2
]}

Roedel, Juergen ^{[2
]}

Hong, In-Ki ^{[3
]}

Tai, Weon-Pil ^{[3
]}

Lee, Jae-Shin ^{[1
]}

机构：

[1] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 680749, South Korea

[2] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

[3] Ulsan Fine Chem Ind Ctr, Ulsan, South Korea

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2012年 / 24卷 / 36期

基金：

新加坡国家研究基金会;

关键词：

INDUCED PHASE-TRANSITION; TRANSMISSION ELECTRON-MICROSCOPY; GIANT STRAIN; CERAMICS; PIEZOCERAMICS; BEHAVIOR;

D O I：

10.1088/0953-8984/24/36/365901

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of LaFeO3 addition to Bi-1/2(Na0.78K0.22)(1/2)TiO3 ceramics on the phase stability and macroscopic functional properties was investigated. Similarly to other chemical modifiers known in the literature, LaFeO3 addition suppresses an electric-field-induced long-range ferroelectric order, giving rise to a giant unipolar strain of similar to 0.3% at 2 mol% LaFeO3 addition. Time-dependent changes in polarization and strain hysteresis loops both during successive electrical cycling and after removal of the electric field suggest that a specimen with 2 mol% LaFeO3 consists of both ergodic and nonergodic phases, which is unique among the known relaxor materials.

引用

页数：6

共 52 条

[1] Monoclinic crystal structure of polycrystalline Na0.5Bi0.5TiO3 [J].

Aksel, Elena ;

Forrester, Jennifer S. ;

Jones, Jacob L. ;

Thomas, Pam A. ;

Page, Katharine ;

Suchomel, Matthew R. .

APPLIED PHYSICS LETTERS, 2011, 98 (15)

[2] Determination of depolarization temperature of (Bi1/2Na1/2)TiO3-based lead-free piezoceramics [J].

Anton, Eva-Maria ;

Jo, Wook ;

Damjanovic, Dragan ;

Roedel, Juergen .

JOURNAL OF APPLIED PHYSICS, 2011, 110 (09)

[3] Electric-field-temperature phase diagram of the relaxor ferroelectric lanthanum-modified lead zirconate titanate [J].

Bobnar, V ;

Kutnjak, Z ;

Pirc, R ;

Levstik, A .

PHYSICAL REVIEW B, 1999, 60 (09) :6420-6427

[4] Lead-free high-strain single-crystal piezoelectrics in the alkaline-bismuth-titanate perovskite family [J].

Chiang, YM ;

Farrey, GW ;

Soukhojak, AN .

APPLIED PHYSICS LETTERS, 1998, 73 (25) :3683-3685

[5]

CROSS LE, 1987, FERROELECTRICS, V76, P241, DOI 10.2109/jcersj.99.829

[6] WHAT CAN BE EXPECTED FROM LEAD-FREE PIEZOELECTRIC MATERIALS? [J].

Damjanovic, Dragan ;

Klein, Naama ;

Li, Jin ;

Porokhonskyy, Viktor .

FUNCTIONAL MATERIALS LETTERS, 2010, 3 (01) :5-13

[7] Electric-field-induced phase-change behavior in (Bi0.5Na0.5)TiO3-BaTiO3-(K0.5Na0.5)NbO3: A combinatorial investigation [J].

Daniels, John E. ;

Jo, Wook ;

Roedel, Juergen ;

Honkimaeki, Veijo ;

Jones, Jacob L. .

ACTA MATERIALIA, 2010, 58 (06) :2103-2111

[8] Relaxor Characteristics of Morphotropic Phase Boundary (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 Modified with Bi(Zn1/2Ti1/2)O3 [J].

Dittmer, Robert ;

Jo, Wook ;

Daniels, John ;

Schaab, Silke ;

Roedel, Juergen .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (12) :4283-4290

[9] Electric-field-induced polarization in the ergodic and nonergodic states of PbMg1/3Nb2/3O3 relaxor [J].

Dkhil, B ;

Kiat, JM .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (09) :4676-4681

[10] In-situ X-ray diffraction study of an electric field induced phase transition and giant strain in Na0.5Bi0.5TiO3-x%BaTiO3 lead-free single crystals [J].

Ge, Wenwei ;

Zhang, Qinhui ;

Wang, Zhiguang ;

Yao, Jianjun ;

Li, Jiefang ;

Luo, Haosu ;

Viehland, D. .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2011, 5 (09) :356-358

← 1 2 3 4 5 6 →