HIGH PRESSURE ELECTRICAL RESISTIVITY STUDY ON NONLINEAR SINGLE CRYSTAL ZINC THIOUREA CHLORIDE

2007 ◽  
Vol 21 (11) ◽  
pp. 675-678 ◽  
Author(s):  
S. ARIPONNAMMAL ◽  
R. SELVA VENNILA ◽  
S. RADHIKA ◽  
P. M. USHASREE
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Single Crystal ◽  
Powder Diffraction ◽  
Slow Evaporation ◽  
X Ray ◽  
Resistivity Study ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Electrical Resistivity Study

Zinc thiourea chloride (ZTC) crystals were crystallized by slow evaporation technique. The lattice parameters of the grown crystals were determined by angle dispersive X-ray powder diffraction technique (XRD) and the structure was confirmed. High pressure electrical resistivity study was carried out on this crystal and the results are reported here.

HIGH PRESSURE ELECTRICAL RESISTIVITY STUDY ON ORTHORHOMBIC SnTe1−xSx

1996 ◽  
Vol 10 (10) ◽  
pp. 459-465
Author(s):  
S. ARIPONNAMMAL ◽  
S. NATARAJAN
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Lattice Parameter ◽  
Layered Material ◽  
Parameter Study ◽  
X Ray ◽  
Resistivity Measurements ◽  
Resistivity Study ◽  
Sulphur Concentration ◽  
Electrical Resistivity Study

Electrical resistivity measurements under pressure and lattice parameter study on SnTe 1–xSx(0.5≤x≤1) are reported here. The structure of these samples is confirmed by the theoretical calculation of X ray intensities using Lazy-Pulverix programme. The electrical resistivity decreases with the increase of pressure and also with the decrease of sulphur concentration. High pressure electrical resistivity study has produced more evidence that the compounds are layered material.

scholarly journals Growth, Optical and Microhardness Studies of 2-Aminothiazole- 3, 5-Dinitrobenzoic Acid Complex

2019 ◽  
Vol 1 (1) ◽  
pp. 42-45
Author(s):  
Tamiloli Devendhiran ◽  
Keerthika Kumarasamy ◽  
Mei–Ching Lin
Keyword(s):  
Room Temperature ◽  
Grown Crystal ◽  
Optical Transmittance ◽  
Dielectric Measurements ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
Acid Complex ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

Single crystals of 2-Aminothiazole 3,5-Dinitrobenzoic acid has been synthesized and good quality optical crystals were grown by slow evaporation technique at room temperature. The crystallinity nature of the grown crystal was confirmed from X-ray diffraction technique. An optical transmittance study was also carried out by UV – Vis spectra. FTIR spectra confirm the presence of functional groups in the grown crystal. The dielectric measurements were carried out in the range of 50Hz to 2MHz. The dielectric constant was seen to increase exponentially at lower frequencies. The microhardness studies were carried out using Vickers hardness indenter. Photoluminescence study shows that maximum emission occurs at 435nm.

Synthesis, growth and third-order nonlinear optical properties of quinolinium single crystal-PCLQI

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 33159-33169 ◽  
Author(s):  
S. Karthigha ◽  
S. Kalainathan ◽  
Fumio Hamada ◽  
Manabu Yamada ◽  
Yoshihiko Kondo
Keyword(s):  
Optical Properties ◽  
Single Crystal ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Slow Evaporation ◽  
Third Order ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Phenyl Vinyl

N-Ethyl quinolinium chromophore crystal 2-[2-(4-chloro-phenyl)-vinyl]-1-ethyl-quinolinium iodide (PCLQI) has been successfully grown by the slow evaporation technique.

SYNTHESIS, CHARACTERIZATION, AND HIGH-PRESSURE STUDIES OF Y0.8Sr0.2Ba2Cu3O6+x AND Y0.8Ba2.2Cu3O6+x

1993 ◽  
Vol 07 (23) ◽  
pp. 1527-1531 ◽  
Author(s):  
K. JEYABALAN ◽  
C. VENKATESWARAN ◽  
R. ASOKAMANI ◽  
S. NATARAJAN
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Powder Diffraction ◽  
Tetragonal Structure ◽  
Transition Temperatures ◽  
X Ray ◽  
High Pressure Studies

Synthesis of air-quenched high-T c superconductors Y 0.8 Sr 0.2 Ba 2 Cu 3 O 6+x and Y 0.8 Ba 2.2 Cu 3 O 6+x exhibiting transition temperatures of 90 K and 88 K respectively and the variation of their electrical resistivity at high pressure are reported here. X-ray powder diffraction of the above systems reveal tetragonal structure.

High pressure electrical resistivity study on cubic SnTe1−xSex

1996 ◽  
Vol 197 (1) ◽  
pp. K1-K4 ◽  
Author(s):  
S. Ariponnammal ◽  
C. Venkateswaran ◽  
S. Natarajan
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Resistivity Study ◽  
Electrical Resistivity Study

CHARACTERIZATION OF KHCO3 SINGLE CRYSTALS

2004 ◽  
Vol 11 (01) ◽  
pp. 83-86 ◽  
Author(s):  
S. ABOUELHASSAN ◽  
F. SALMAN ◽  
M. ELMANSY ◽  
E. SHEHA
Keyword(s):  
Phase Transition ◽  
Activation Energy ◽  
Aqueous Solution ◽  
Single Crystals ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

Single crystals of KHCO 3 were grown by the slow evaporation technique of an aqueous solution. Characterization of the sample was done using different techniques such as X-ray diffraction, infrared spectra (IR) and the differential scanning calorimeter (DSC) technique. The analysis of the X-ray diffraction pattern indicated that the sample was a single crystal. The results obtained by IR and DSC indicated the presence of phase transition. From the analysis of DSC, the activation energy of transition was carried out by two methods (Kissinger and Ozawa).

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