ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Electrical transport properties, i.e. a.c. and d.c. electrical conductivities, thermoelectric power and dielectric constant, of Fe2(MoO4)3 have been measured in the temperature range 300 to 1000 K on pressed pellets of a polycrystalline sample, using the two electrode method. Iron (III) molybdate has been found to be a p-type semiconductor with an energy gap of 3.1 eV. Intrinsic conduction occurs at ∼ 750 K and the activation energies below and above 750 K are 0.51 and 1.55 eV, respectively. The thermoelectric power increases up to ∼ 750 K and after that it decreases with increasing temperature. The dielectric constant increases with temperature over the entire temperature range measured except 650 to 750 K, where it has a constant value.[/p]
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01086498
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