Structural changes of relaxor ferroelectric Sr0.52Ba0.48Nb2O6 (SBN52) on quenching and reheating

被引：10
作者：
Graetsch, Heribert A. [1 ]
机构：
[1] Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Univ Str 150, D-44801 Bochum, Germany
来源：
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS | 2017年 / 73卷
关键词：
strontium barium niobate; relaxor ferroelectric; off-centre displacement; quenching; incommensurate modulation; STRONTIUM BARIUM NIOBATE; SINGLE-CRYSTALS; GROWTH; SRXBA1-XNB2O6; TEMPERATURE; MODULATIONS; SERIES; CBN28;
D O I：
10.1107/S2052520617007880
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Quenching of Sr0.52Ba0.48Nb2O6 (SBN52) from temperatures above 700 degrees C causes small modifications in the strontium distribution over the large cation sites (Me1 and Me2), changed off-centre shifts of the Nb atoms and slightly increased modulation amplitudes. The higher disorder of cation incorporation can explain the enhanced ferroelectric properties. The quenched structural disorder can be healed by reheating followed by slow cooling. A change of the modulation dimension on quenching such as for CaxBa1-xNb2O6 (CBN) mixed crystals was not observed.
引用
收藏
页码：820 / 826
页数：7
相关论文
共 21 条
[1]   ATOMIC DISPLACEMENT RELATIONSHIP TO CURIE TEMPERATURE AND SPONTANEOUS POLARIZATION IN DISPLACIVE FERROELECTRICS [J].
ABRAHAMS, SC ;
KURTZ, SK ;
JAMIESON, PB .
PHYSICAL REVIEW, 1968, 172 (02) :551-&
[2]  
Agilent Technologies, 2015, CRYSALISPRO VERS 171
[3]   Crystal growth and characterization of CaxBa1-xNb2O6 (CBN) in the composition range of 0.22 ≤ xCa ≤ 0.35 [J].
Burianek, M. ;
Joschko, B. ;
Kerkamm, I. ;
Schoenbeck, T. ;
Klimm, D. ;
Muehlberg, M. .
JOURNAL OF CRYSTAL GROWTH, 2007, 299 (02) :413-417
[4]   Atomic structure of (Sr0.50Ba0.50)Nb2O6 single crystals in the series of (SrxBa1-x)Nb2O6 compounds [J].
Chernaya, TS ;
Volk, TR ;
Verin, IA ;
Ivleva, LI ;
Simonov, VI .
CRYSTALLOGRAPHY REPORTS, 2002, 47 (02) :213-216
[5]   THE ANALYTICAL CALCULATION OF ABSORPTION IN MULTIFACETED CRYSTALS [J].
CLARK, RC ;
REID, JS .
ACTA CRYSTALLOGRAPHICA SECTION A, 1995, 51 :887-897
[6]   Large structural modulations in the relaxor ferroelectric and intermediate state of strontium rich members (x > 0.6) of the SrxBa1-xNb2O6 (sbn) solid solution series [J].
Graetsch, H. A. .
JOURNAL OF SOLID STATE CHEMISTRY, 2017, 246 :167-175
[7]   Changes of the crystal structure at the relaxor ferroelectric phase transition of strontium barium niobate (SBN53) [J].
Graetsch, H. A. .
CRYSTAL RESEARCH AND TECHNOLOGY, 2014, 49 (01) :63-69
[8]   Thermally induced structural changes in incommensurate calcium barium niobate Ca0.28Ba0.72Nb2O6 (CBN28) [J].
Graetsch, H. A. ;
Schreuer, J. ;
Burianek, M. ;
Muehlberg, M. .
JOURNAL OF SOLID STATE CHEMISTRY, 2012, 196 :255-266
[9]   Incommensurate modulations of relaxor ferroelectric Ca0.24Ba0.76Nb2O6 (CBN24) and Ca0.31Ba0.69Nb2O6 (CBN31) [J].
Graetsch, Heribert A. ;
Pandey, Chandra Shehkar ;
Schreuer, Juergen ;
Burianek, Manfred ;
Muehlberg, Manfred .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 2014, 70 :743-749
[10]  
Graetsch HA, 2012, ACTA CRYSTALLOGR B, V68, P101, DOI [10.1107/S0108768111054863, 10.1107/S0108768111054863101]
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