IONIC DISPLACEMENTS AND PIEZOELECTRIC CONSTANTS OF
IONIC DISPLACEMENTS AND PIEZOELECTRIC CONSTANTS OF AgGaS2 FROM X-. RAY DIFFRACTION OF A CRYSTAL IN AN EXTERNAL ELECTRIC FIELD.* ... The shifts in Bragg angle of 14 reflections, due to a field of 2.6 x 106 V/ m.
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Electronic reprint - CRM2
properties like the piezoelectric and dielectric properties of crystals. This article ... Introduction. From accurate X-ray diffraction data measured out to large .... the piezo- electric constants from different diffraction experiments but it .... 1992), the chalcopyrite AgGaS2 (Graafsma et al., 1993), ... to ionic displacements. Stahn et al.
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Deformations in Crystals Induced by External Electric Fields
2.2 Previous X-ray studies on crystals in electric fields . . . . . . . . . . . 11 .... unit cells . The displacements of the atoms induced by an external electric field are ..... the structural modifications in the ionic compound AgGaS2  as well as in the .... piezoelectric constants can be extracted from X-ray diffraction measurements of the.
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Chapter 33 - Handbook of Optics - Photonics Research Group
velocity of sound x displacement x variable of integration. Z formulas per unit ..... Properties of materials depend on several fundamental constants that are listed in Table .... that the elasto-optic and piezo-optic tensors have lower symmetry than the .... observed by infrared or Raman spectroscopy, as well as by x-ray or.
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Publications - American Crystallographic Association
Mar 6, 2010 ... Na5W3O9F5 Phase Transitions by X-Ray and Neutron Diffraction". .... Expansivity and Pyroelectric Coefficient Thermal Dependences in ZnO." Acta Cryst. B45,. 34-40 (1989). ..... "Piezoelectric and Pyroelectric Ionic Displacements .... "Crystal Structures of Piezoelectric Nonlinear Optic AgGaS2 ". J. Chem.
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table of contents - Shodhganga
with constant source zone temperature of 1173 K and the iodine ... unit Cell, tetragonal distortion ( ), anion displacement. (w) and composition of ... Single crystal XRD lattice parameters, volume of unit ... AgGaS2 crystal and 120 MeV energy Ag9 ions irradiated .... d33 Piezoelectric constant with tensor component 33.
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Journal of Advanced Computing (2012) 1: 1-6 - Columbia
Dec 14, 2013 ... keV during 5 min at an ion current density of 14 μA/cm2 has induced ... Keywords : Chalcogenide crystals; X-ray photoelectron spectroscopy; X-ray ... AgGaS2 and AgGaSe2 compounds, which are used for frequency ... During illumination by microsecond CO2 laser, the piezoelectric properties of AgGaGeS4.
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stimulated Raman gain coefficient gs/I where I is the incident laser power density. The calculated ... AgGaS2 with Eg. 2.7 eV at ... ionic sublattice by different atomic species induces a change from Td. 2(F4. ¯ ... For piezoelectric crystal structures, which lack a center ... by using x-ray diffraction techniques carried out at room.
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A theoretical model of the linear electro-optic effect - Core
the electro-optic coefficient of a crystal and is applied to a wide variety of ... KD2P04, NHsHzPOd), chalcopyrite (AgGaS2, CuGaS2) and proustite (Ag3AsS3). ... With the macroscopic equations between polarisation, ion displacement ..... be detectable by the new technique of modulation x-ray diffraction (Fujimoto 1978).
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to obtain the whole report in pdf format - LLB - CEA
Jan 7, 2004 ... Neutron Diffraction Experiments on the modulated structure of SrxBa1-xNb2O6. 20 .... Ionic strength dependence of the persistence length of a natural .... Life sciences: The research activities in this field are in constant increase at the LLB. ..... 77K-300K temperature range via X-ray powder diffraction (XRD), ...
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publications - LLB
G., KARL N. - Structural evidence of ferrielectric neutral-ionic layered ordering in 2 ..... GASTALDI J. - Coherent X-ray diffraction and phason fluctuations.
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Sym R Abstract Book - MRS-S
Jun 28, 2009 ... Effect Of Swift Heavy Ion Irradiation In Dyes Doped L-Arginine Phosphate Single Crystals For Laser .... Displacement Current Measurement of Rubrene Single Crystal Transistor .... Coefficient (Rh) 176 cm3 / Coul and XRD showed preferred .... to its high electro-optic, piezoelectric, acousto-optic and.
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