Thermo- and Magnetoresistive Properties of Multicomponent Film Materials Based on Magnetic and Non-magnetic Metals
2021
In the phenomenological approximation, the relations for the differential temperatures coefficient of resistance $\left(\beta_{T}=\frac{\partial\ln\rho}{\partial T}\right)$ and magnetic coefficient of resistance $\left(\beta_{B}=\frac{\partial\ln\rho}{\partial B}\right)$, where $\rho=\sum_{(i)}c_{i}\rho_{i}$, for multicomponent high-entropy film alloys (HEA) based on magnetic and non-magnetic metals are obtained. Experimental values $\beta_{T},\beta_{B}^{MR}$ and $\beta_{B}^{GMR}\quad$ agree well with the calculations, which allows for the prognosis of the value $\beta_{T}$ for normal $\beta_{B}^{M/R}$ and for giant $\beta_{B}^{GMR}$ magnetoresistance based on experimental data for temperature and magnetic coefficients of individual components.
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