Anomalous Hall Effect in (Co41Fe39B20)x(Al–O)100-x Nanocomposites: Temperature Dependence

Yuriy O. Mikhailovsky; Valery N. Prudnikov; Konstantin Yu. Chernoglazov; Vladimir V. Rylkov; Sergey N. Nikolaev; Alexander V. Sitnikov; Yuriy E. Kalinin; Doron Bartov; Alexander Gerber; A.B. Granovsky

doi:10.4028/www.scientific.net/SSP.233-234.403

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HomeSolid State PhenomenaSolid State Phenomena Vols. 233-234Anomalous Hall Effect in (Co41Fe39B20)x(Al–O)100-x...

Anomalous Hall Effect in (Co₄₁Fe₃₉B₂₀)_x(Al–O)_100-x Nanocomposites: Temperature Dependence

Abstract:

We present our last results on anomalous Hall effect (AHE) in (Co₄₁Fe₃₉B₂₀)_x(Al–O)_100-x nanocomposites focusing on the possible correlation between temperature dependence of AHE and resistivity. It is shown that the temperature dependence of conductivity G=1/R_xx, where R_xx is resistivity, for compositions with x=49-56% at 10K<T<T_k follows the relation, where the parameters A, , T_k depend on x. For x=47% this relation changes to the exponential law “1/2” R_xx ∝ exp (Т₀/T)^1/2. The correlation between AHE resistivity R_H (T) and resistivity R_xx (T) can be described as R_H ∝ (R_xx)^m , where m increases from 0.38 to 0.58 with an increase of x from 49 to 56 %.

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Solid State Phenomena (Volumes 233-234)

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403-406

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https://doi.org/10.4028/www.scientific.net/SSP.233-234.403

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July 2015

Authors:

Yuriy O. Mikhailovsky*, Valery N. Prudnikov, Konstantin Yu. Chernoglazov, Vladimir V. Rylkov, Sergey N. Nikolaev, Alexander V. Sitnikov, Yuriy E. Kalinin, Doron Bartov, Alexander Gerber, A.B. Granovsky

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Anomalous Hall Effect, Nanocomposite, Resistance

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