Point Defects and Physical Properties of Ferroelectrics: Lithium Niobate

2003 ◽  
Author(s):  
G. Malovichko
Keyword(s):  
Lithium Niobate ◽  
Physical Properties ◽  
Point Defects

Some Physical Properties and Point Defects in Bi2 Te3−xSx Mixed Crystals

1984 ◽  
Vol 84 (2) ◽  
pp. K143-K147 ◽  
Author(s):  
P. Lošť??k ◽  
J. Horák ◽  
L. Koudelka
Keyword(s):  
Physical Properties ◽  
Point Defects ◽  
Mixed Crystals

scholarly journals Point defects and their physical properties in III-V Semiconductors (GaAs)

1986 ◽  
Vol 28 (2) ◽  
pp. 103-113
Author(s):  
Toshiaki IKOMA ◽  
Yasunori MOCHIZUKI
Keyword(s):  
Physical Properties ◽  
Point Defects

Nonuniform electromechanical efficiency and point defects in lithium niobate

2017 ◽  
Vol 142 (4) ◽  
pp. 2722-2722
Author(s):  
Chandrima Chatterjee ◽  
Igor Ostrovskii
Keyword(s):  
Lithium Niobate ◽  
Point Defects

Some physical properties and point defects in Bi2-xInxTe3 mixed crystals

1983 ◽  
Vol 76 (1) ◽  
pp. K71-K75 ◽  
Author(s):  
P. Lošťák ◽  
J. Horák ◽  
L. Koudelka
Keyword(s):  
Physical Properties ◽  
Point Defects ◽  
Mixed Crystals

scholarly journals Determination of Physical Properties for Point Defects during CZ Silicon Crystal Growth by High-Precision Thermal Simulations

2011 ◽  
Vol 75 (12) ◽  
pp. 657-664 ◽  
Author(s):  
Manabu Nishimoto ◽  
Kozo Nakamura ◽  
Masataka Hourai ◽  
Toshiaki Ono ◽  
Wataru Sugimura ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Physical Properties ◽  
High Precision ◽  
Point Defects ◽  
Silicon Crystal ◽  
Thermal Simulations

scholarly journals CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION

2020 ◽  
pp. 200-205
Author(s):  
Наталья Александровна Теплякова ◽  
Николай Васильевич Сидоров ◽  
Михаил Николаевич Палатников
Keyword(s):  
Phase Diagram ◽  
Lithium Niobate ◽  
Point Defects ◽  
Cation Sublattice ◽  
Hydroxyl Groups ◽  
Ir Absorption ◽  
Oh Groups ◽  
Ir Absorption Spectra ◽  
Stretching Vibrations ◽  
Lithium Niobate Crystals

Исследованы ИК-спектры поглощения в области валентных колебаний OH - групп кристаллов ниобата лития стехиометрического и конгруэнтного составов. Рассчитана концентрация OH - групп, отношение Li / Nb, а также концентрация точечных дефектов Nb и V. Результаты расчетов совпадают с литературными данными и подтверждаются фазовой диаграммой ниобата лития. Показано, что увеличение количества свободных протонов (вносящих вклад в проводимость) может обуславливать более высокие электропроводность, скорость термической фиксации голограмм и снижение эффекта фоторефракции. The IR absorption spectra in the region of stretching vibrations of OH - groups of lithium niobate crystals of stoichiometric and congruent compositions are studied. The results of calculations of the OH - groups concentration, the Li / Nb ratio and the concentration of point defects Nb and V coincide with the literature data. The phase diagram of lithium niobate confirms these results. It is shown that an increase in the number of free protons that contribute to conductivity can lead to reducing the optical damage and higher electrical conductivity and the rate of thermal fixation of holograms.

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