Dielectric response and domain wall structure in the relaxor based mixed crystal system

基于弛豫剂的混晶体系中的介电响应和畴壁结构

• 批准号: 15540307
• 负责人: IWATA Makoto
• 金额: $ 2.3万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15540307/
• 关键词: relaxor; MPB; AFM; domain wall; ferroelectrics; phase transition; EFM; finger print pattern; ペロプスカイト

Domain wall structures in Pb(Zn_<1/3>Nb_<2/3>)O_<3^->xPbTiO_3(PZN_<-x>PT;x=0%,8%,20%) crystals were investigated using atomic force microscopy(AFM). Ferroelectric and ferroelastic domain wall structures were observed on the etched surface. In the rhombohedral phase, a zigzag domain wall structure was newly found. We showed that all of the ferroelastic domain wall structures observed in the tetragonal and rhombohedral phases can be explained by the Sapriel theory, and concluded that no ferroelectric charged domain wall exists in the PZN_<-x>PT(x=8%,20%) crystal without an external field. The symmetry of the crystal phase in PZN-8%PT at room temperature is discussed. It was also found that finger print pattern in PZN disappears after the poling process even in the weak field of about 50 V/cm which is about 1/20 of the coercive field.

使用原子力显微镜（AFM）研究了Pb（Zn_ <1/3> NB_ <2/3>）O_ <3^ - > XPBTIO_3（PZN _ <-X> PT; X = 0％，8％，20％）晶体的域壁结构。在蚀刻表面观察到铁电和铁弹性结构域壁结构。在菱形阶段，新发现了锯齿形域壁结构。我们表明，在四方和菱形的相机中观察到的所有铁弹性结构域壁结构都可以通过Sapriel理论来解释，并得出结论，在PZN _ <-x> pt（x = 8％，20％）没有外部场的晶体中，在PZN _ <-x> pt（x = 8％，20％）晶体中不存在铁电荷电荷壁。讨论了在室温下PZN-8％PT中晶相的对称性。还发现，即使在约50 v/cm的弱场中，PZN中的指定图案也会消失，即强制场约1/20。

项目成果

Phenomenology of Elastic Properties in Martensite Alloys

马氏体合金弹性性能的现象学

• 发表时间: 2003
• 期刊: Journal of the Physical Sosiety of Japan Vol.72, No.7
• 作者: Y.Ishibashi;M.Iwata
• 通讯作者: M.Iwata

Annealing Effect of the Phase Transition in PbIn_<1/2>Nb_<1/2>O_3 Crystal

PbIn_<1/2>Nb_<1/2>O_3晶体相变的退火效应

• 发表时间: 2004
• 期刊: Ferroelectrics 301
• 作者: M.Iwata;S.Katagiri;H.Orihara;I.Suzuki;M.Maeda;H.Ohwa;N.Yasuda;Y.Ishibashi
• 通讯作者: Y.Ishibashi

M.Iwata et al.: "Domein-Wall Observation in Pb(Zn_<1/3>Nb_<2/3>)O_3-PbTiO_3 Mixed Crystals by Scanning Probe"Japanese Journal of Applied Physics. 42・(9B). 6201-6204 (2003)

M.Iwata 等人：“通过扫描探针观察 Pb(Zn_<1/3>Nb_<2/3>)O_3-PbTiO_3 混合晶体中的穹壁”日本应用物理学杂志 42·(9B)。 -6204 (2003)

M.Iwata, Y.Ishibashi: "Phenomenology of Elastic Properties in Martensite Alloys II : Temperature Dependence of the Elastic Constant and Hysteresis Loop"Journal of the Physical Sosiety of Japan. 72・(11). 2834-2849 (2003)

M.Iwata、Y.Ishibashi：“马氏体合金弹性特性的现象学 II：弹性常数和磁滞回线的温度依赖性”日本物理学会杂志 72・(11) 2834-2849 (2003)。

Observation of Domain-Wall Structure in Pb(Zn_<1/3>Nb_<2/3>)O_3-20%PbTiO_3 by Scanning Probe microscopy

观察%20of%20Domain-Wall%20Structure%20in%20Pb(Zn_<1/3>Nb_<2/3>)O_3-20%PbTiO_3%20by%20Scanning%20Probe%20microscopy

• 发表时间: 2003
• 期刊: Journal of Korean Physical Society Vol.42
• 作者: M.Iwata;M.Maeda;I.Suzuki;H.Ohwa;N.Yasuda;Y.Ishibashi
• 通讯作者: Y.Ishibashi