Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 254, Issue 11, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201700153
Keywords
electron hopping transport; ferromagnetic nanocomposites; magnetic centers; magnetothermoelectric power
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In nanocomposite layers consisting of Co nanoparticles in Al2O3 matrix the thermoelectric power was studied in a wide range of Co content. These layers revealed the giant thermoelectric power in a magnetic field for Co content below percolation threshold. This unusual phenomenon has been explained by hopping electron transport through the media which consist of both, nonmagnetic and magnetic centers in the conditions of temperature gradient.
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