Twinning domain in 67Pb(Mg1/3Nb2/3)O3–33PbTiO3 ferroelectric complex perovskite crystal grown by the Bridgman method

2001 ◽  
Vol 16 (5) ◽  
pp. 1252-1255 ◽  
Author(s):  
Donglin Li ◽  
Pingchu Wang ◽  
Xiaoming Pan ◽  
Haosu Luo ◽  
Zhiwen Yin
Keyword(s):  
Solid Solution ◽  
Martensitic Transformation ◽  
Light Microscopy ◽  
Single Crystals ◽  
Polarized Light ◽  
Bridgman Method ◽  
Ambient Conditions ◽  
Complex Perovskite ◽  
Cubic Symmetry ◽  
Perovskite Crystal

Single crystals of 67Pb(Mg1/3Nb2/3)O3–33PbTiO3 (PMN-PT, PMNT) relaxor-based complex perovskite solid solution grown by Bridgman method have pseudo-cubic symmetry under ambient conditions. Examination by means of polarized light microscopy showed that the microstructure of the crystals was dominated by a large number of coarse twin domains. It was confirmed that the most common composition planes were {110} in addition, {112} planes were also observed. These twins may be associated with the transformation of PMNT complex perovskite from the cubic to tetragonal upon a decrease in temperatures. The morphology of the domain structure may be explained from the theory of martensitic transformation.

Temperature and electric field induced phase transition in [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 single crystals

CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8664-8670 ◽  
Author(s):  
Wenhui He ◽  
Qiang Li ◽  
Nengneng Luo ◽  
Yiling Zhang ◽  
Qingfeng Yan
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Light Microscopy ◽  
Single Crystals ◽  
Polarized Light ◽  
Polarized Light Microscopy ◽  
Temperature Dependent ◽  
Dependent Domain

Temperature-dependent domain configurations were studied for both unpoled and poled [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 (PMN–0.37PT) single crystals by polarized light microscopy (PLM).

Direct observation of monoclinic ferroelectric phase and domain switching process in (K0.25Na0.75)NbO3 single crystals

CrystEngComm ◽  
2015 ◽  
Vol 17 (14) ◽  
pp. 2872-2877 ◽  
Author(s):  
Hao Deng ◽  
Haiwu Zhang ◽  
Xiangyong Zhao ◽  
Chao Chen ◽  
Xi'an Wang ◽  
...  
Keyword(s):  
Light Microscopy ◽  
Single Crystals ◽  
Direct Observation ◽  
Ferroelectric Phase ◽  
Domain Switching ◽  
Polarized Light ◽  
Switching Process ◽  
X Ray Diffraction ◽  
X Ray

The domain-switching process of monoclinic K0.25Na0.75NbO3 single crystals were studied by in situ polarized light microscopy and X-ray diffraction.

scholarly journals Preparation and Its Properties of Alkali Halide Solid-Solution Single Crystals by Bridgman Method

1995 ◽  
Vol 103 (1200) ◽  
pp. 828-832 ◽  
Author(s):  
Ryuichi TOMOSHIGE ◽  
Hitoshi KENBISHI ◽  
Masao KODAMA ◽  
Toru MATSUSHITA
Keyword(s):  
Solid Solution ◽  
Single Crystals ◽  
Alkali Halide ◽  
Bridgman Method

Light microscopy of ceramics

1993 ◽  
Vol 51 ◽  
pp. 908-909
Author(s):  
Walter C. McCrone
Keyword(s):  
Refractive Index ◽  
Light Microscopy ◽  
Light Microscope ◽  
Polarized Light ◽  
Refractive Indices ◽  
Complete Coverage ◽  
The Subject ◽  
Lower Refractive Index

An excellent chapter on this subject by V.D. Fréchette appeared in a book edited by L.L. Hench and R.W. Gould in 1971 (1). That chapter with the references cited there provides a very complete coverage of the subject. I will add a more complete coverage of an important polarized light microscope (PLM) technique developed more recently (2). Dispersion staining is based on refractive index and its variation with wavelength (dispersion of index). A particle of, say almandite, a garnet, has refractive indices of nF = 1.789 nm, nD = 1.780 nm and nC = 1.775 nm. A Cargille refractive index liquid having nD = 1.780 nm will have nF = 1.810 and nC = 1.768 nm. Almandite grains will disappear in that liquid when observed with a beam of 589 nm light (D-line), but it will have a lower refractive index than that liquid with 486 nm light (F-line), and a higher index than that liquid with 656 nm light (C-line).

Anisotropy of photoluminescence of Li2B4O7: Cu single crystals in polarized light

2014 ◽  
Vol 35 (0) ◽  
pp. 179-184
Author(s):  
К. П. Попович ◽  
М. С. Кленівський ◽  
М. М. Биров ◽  
І. І. Чичура
Keyword(s):  
Single Crystals ◽  
Polarized Light

Ferroelastic domains and phase transitions in organic–inorganic hybrid perovskite CH3NH3PbBr3

2021 ◽  
Author(s):  
Maryam Bari ◽  
Alexei A. Bokov ◽  
Zuo-Guang Ye
Keyword(s):  
Phase Transitions ◽  
Electric Field ◽  
Light Microscopy ◽  
Domain Structure ◽  
Polarized Light ◽  
External Stress ◽  
Polarized Light Microscopy ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Ferroelastic Domains

Polarized light microscopy reveals twin domains and symmetry of the phases in CH3NH3PbBr3 crystal; domain structure remains unresponsive to electric field but changes under external stress, confirming ferroelasticity while ruling out ferroelectricity.

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