Magnetoresistance in Granular Metal–Dielectric Composites

Magnetoresistance in granular composites over a broad concentration range (25 < x < 60%) was investigated. In the studied composites both-positive and negative magnetoresistance were observed. Positive magnetoresistance at x ≤ 45 reaches 20% in magnetic fields of 11–12 kOe. This result can be...

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Bibliographic Details
Published inSurface engineering and applied electrochemistry Vol. 54; no. 2; pp. 131 - 135
Main Authors Samedova, U. F., Hasanli, Sh. M.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2018
Springer Nature B.V
Subjects
Cluster analysis
Composite materials
Dipole interactions
Dipoles
Engineering
Machines
Magnetic anisotropy
Magnetic fields
Magnetoresistance
Magnetoresistivity
Manufacturing
Processes
polymeric composites
microstructure
X-ray
magnetic materials
thin films
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Summary:Magnetoresistance in granular composites over a broad concentration range (25 < x < 60%) was investigated. In the studied composites both-positive and negative magnetoresistance were observed. Positive magnetoresistance at x ≤ 45 reaches 20% in magnetic fields of 11–12 kOe. This result can be explained by assuming that in the analyzed composites clusters and granules of isolated magnetic particles co-exist. This is why, they are characterized by different values of magnetic anisotropy and the presence of a dipole-dipole interaction between the clusters and the nearest-neighbor particles.
ISSN:1068-3755
1934-8002
DOI:10.3103/S1068375518020114