-
Article
Electrical conductivity and dehydration steps of gel-grown CdC2O4·3H2O
Electrical conductivity measurement (d.c.), dynamic TGA and DSC analysis of CdC2O4 · 3H2O in single crystalline and polycrystalline pellet forms have been carried out in the temperature range 25 to 350° C. Though...
-
Article
Lattice disorder and electrical conductivity of flux-grown Ca(WO4) x (MoO4)1−x crystals
The growth of solid solutions of Ca(WO4) x (MoO4)1−x in the rangeX=0.072 to 0.86 has been successfully accomplished for the first time, employing a flux technique. The fact tha...
-
Article
Crystal growth of barium molybdate by flux evaporation
Single crystals of BaMoO4 have been grown by isothermal evaporation of lithium chloride at 700°C. The morphology and mechanism of growth of the crystals have been discussed. The quality of the crystal has been as...
-
Article
Vickers micromechanical indentation of BaMoO4 crystals
Vickers microhardness measurements have been carried out on flux-grown single crystals of barium molydate. The dependence of hardness on indentation load, and anisotropy in hardness in the (011) and (001) plan...
-
Article
Vickers micromechanical indentation of BaMoO4 crystals
Vickers microhardness measurements have been carried out on flux-grown single crystals of barium molydate. The dependence of hardness on indentation load, and anisotropy in hardness in the (011) and (001) plan...
-
Article
Influence of magnetic field on the photorefractive effect in LiNbO3 crystals
The photorefractive effect has been studied experimentally in single crystals of Fe and Mn-doped lithium niobate as a function of external static magnetic field. A strong dependence of changes in birefringence...
-
Article
Kinetics of calcium molybdate crystallization
Kinetics of crystallization of calcium molybdate from unstirred molten solutions of lithium chloride of low to medium supersaturation in platinum crucibles by the process of continuous cooling at 5° C hr−1 from t...
-
Article
Study of crack patterns during indentation on CaMoO4 single crystals
-
Article
Effect of heat treatment on Ag/Y-Ba-Cu-O contact resistance
The contact resistance (R c) of the metal/YBCO interface has been studied in pressed indium, painted colloidal silver and thermally-evaporated silver contact pads. Indium contacts always show the ...
-
Article
Observation of rf SQUID characteristics in YBCO bulk at 77 K
RF SQUID behaviour due to grain boundary weak links in a bulk YBCO is observed at 77 K using modified commercial rf electronics. Porous samples with lowI c are ...
-
Article
Performance of YBaCuO thick film rf SQUIDs at 77 K
RF SQUID behaviour has been observed at 77 K in YBaCuO thick films prepared by screen printing technique. A hole shunted with a microbridge type of geometry is patterned manually for observing rf SQUID behavio...
-
Article
Observation of rf SQUID characteristics in YBCO bulk at 77 K
-
Article
Josephson effects and dc SQUID behaviour in break junction of Y-Ba-Cu-O at 77 K
Break junctions of Y-Ba-Cu-O superconductor were realized by creating fresh crack in the bar shape bulk samples mounted in a specially designed probe kept in the liquid nitrogen bath. While the bulk sample was...
-
Article
Performance of a 2-hole Y-Ba-Cu-O rf SQUID
A two-hole rf SQUID has been fabricated out of bulk YBCO by drilling two holes and careful erosion of the wall between the holes. Commercial SQUID electronics is inductively coupled to the SQUID through a copp...
-
Article
Electrical conduction in CuWO4 crystals
The d.c. electrical conductivity and thermoelectric power of CuWO4 have been measured in the temperature range 300 to 700 K on unannealed and annealed single crystals and on polycrystalline pellets. It has been f...
-
Article
Performance of 2-hole YBCO rf SQUID in flux-locked-loop mode at 77 K
A 2-hole rf SQUID has been fabricated using naturally present grain boundary Josephson weaklinks in a microbridge of bulk Y-Ba-Cu-O superconductor. Periodic oscillations in voltage-flux characteristics have be...
-
Article
Changes in the anti-nutritional factors of develo** seeds and pod walls of fenugreek (Trigonella foenum graecum L.)
Anti-nutritional factors of develo** seeds and pod walls of fenugreek were evaluated which affect their nutritional value. Sucrose, raffinose and stachyose decreased with maturity of seeds in all the cultiva...
-
Article
Electrical and optical behaviour of vapour-grown SnS2 crystals
Single-crystal growth of tin disulphide using chemical vapour (iodine) transport has been reported. The electrical resistivity, Hall mobility and optical absorption of the vapour-grown crystals have been inves...
-
Article
The effect of Cd2+ on lipid components of sunflower (Helianthus annuus L.) seeds
The effect of seven levels of Cd2+ viz. 0, 10, 20, 30, 40, 60 and 80 ppm (µg/g soil) supplied as cadmium chloride, on lipid components of sunflower seeds was studied in a pot experiment. The total and neutral lip...
-
Article
Phosphorus content and growth of fenugreek as affected by cadmium application
Changes in growth and phosphorus content in plants and seeds of fenugreek with increasing cadmium concentration was evaluated. Root length and shoot length ranged from 11.63 to 27.72 and from 9.70 to 54.78 cm,...
