Thermoelectric Power of Gradient Fex(Al2O3)100-x Composite Films

Oleg Stognei; Ahmed Al-Maliki; Alexander Sitnikov; Vladimir Makagonov

doi:10.4028/www.scientific.net/SSP.233-234.694

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HomeSolid State PhenomenaSolid State Phenomena Vols. 233-234Thermoelectric Power of Gradient Fex(Al2O3)100-x...

Thermoelectric Power of Gradient Fe_x(Al₂O₃)_100-x Composite Films

Abstract:

Nanocomposite Fe_x(Al₂O₃)_100-x films with concentration gradient along the long axis of the samples (40 mm) have been obtained by sputter deposition technique and investigated. Based on the electric and magnetoresistive investigations the gradient Fe_x(Al₂O₃)_100-x samples in which concentration of one edge of the sample is smaller than concentration of a percolation threshold while concentration of opposite edge of this sample is upper the threshold have been determined. Influence of the heat flow direction on the thermoelectric power of the gradient samples has been investigated. Hysteresis of the thermoelectric power is observed when temperature gradient direction is changed.

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Periodical:

Solid State Phenomena (Volumes 233-234)

Pages:

694-698

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.233-234.694

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Online since:

July 2015

Authors:

Oleg Stognei*, Ahmed Al-Maliki, Alexander Sitnikov, Vladimir Makagonov

Keywords:

Magnetoresistance, Nanocomposite, Percolation Threshold, Thermoelectric Power

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