scholarly journals D.C. electrical conductivity measurements on ADP single crystals added with simple organic compounds

2005 ◽  
Vol 28 (5) ◽  
pp. 415-418 ◽  
Author(s):  
A. Anne Assencia ◽  
C. Mahadevan
1964 ◽  
Vol 42 (10) ◽  
pp. 1871-1878 ◽  
Author(s):  
J. Vanderkooy ◽  
J. D. Cuthbert ◽  
H. E. Petch

Electrical conductivity measurements have been made over a range of temperatures on single crystals of lithium hydrazinium sulphate. The d-c. conductivity was found to be markedly anisotropic with the direction of easiest conduction along the ferroelectric c axis. The protonic nature of the current carriers was established in an electrolysis experiment in which the evolution of hydrogen gas was found to be, after an initial time lag, directly proportional to the electrical charge transported across the crystal. The conduction process is discussed in terms of crystal structure and proton reorientations.


2002 ◽  
Vol 55 (6) ◽  
pp. 394-396 ◽  
Author(s):  
N.P Rajesh ◽  
C Mahadevan ◽  
P Santhana Raghavan ◽  
Yen-Chieh Huang ◽  
P Ramasamy

2012 ◽  
Vol 11 (1) ◽  
pp. 36-39 ◽  
Author(s):  
G. Shankar ◽  
G. Anbazhagan ◽  
P.S. Joseph ◽  
T. Balakrishn

2021 ◽  
pp. 12-15
Author(s):  
J. Asbalter ◽  
S. Mugundakumari ◽  
N. Joseph John

Electrical conductivity is an elegant experimental tool to probe the structural defects and internal purity of crystalline solids. In the present study we have grown pure and KDP added DSHP single crystals by the slow evaporation method from aqueous solutions at room temperature. Good quality transparent crystals have been obtained. Melting point and density measurements were done. Electrical conductivity measurements were carried out with two frequencies, 100 Hz and 1 kHz at various temperatures ranging from 2 to 30oC by using the parallel plate capacitor method. The present study indicate that the dielectric constant and AC and DC conductivities increase with increase of temperature.


1970 ◽  
Vol 48 (1) ◽  
pp. 63-69 ◽  
Author(s):  
F. L. Weichman ◽  
R. Kužel

A series of conductivity measurements were made on single crystals of Cu2O from 20 to 840 °C to explain the various activation energies which appear at different temperatures and oxygen pressures. Crystals were annealed in the 10−8 and 10−4 Torr region in the stability ranges of Cu2O, Cu, and CuO at various temperatures. For the low-temperature activation energies ranging from 0.60 to 0.26 eV, an excellent agreement with the empirical Meyer–Neldel rule was found. The highest activation energy of 1.12 eV in the 570 to 680 °C range at 10−8 Torr is associated with the boundary between the two stable phases Cu and Cu2O. The changes in defect concentration are ascribed to the mechanism of self-compensation. The energy-level diagram proposed by Bloem is adequate to explain the present results.


1991 ◽  
Vol 18 (3) ◽  
pp. 611-627 ◽  
Author(s):  
Marta L. Fiorotto ◽  
William J. Klish

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