Fizika Tverdogo Tela, 2024 Volume 66, Issue 10,Pages 1713–1720(Mi ftt10450)
Dielectrics
The influence of heat treatment on the memristive properties of Cu/(Co$_{40}$Fe$_{40}$B$_{20}$)$_x$ (SiO$_2$)$_{100-x}$/LiNbO$_3$/Cr/Cu/Cr capacitor structures
Abstract:
The paper reveals the results of a study of the effect of heat treatment up to 500$^\circ$C on the memristive properties of Cu/(Co$_{40}$Fe$_{40}$B$_{20}$)$_x$ (SiO$_2$)$_{100-x}$/LiNbO$_3$/Cr/Cu/Cr/glass-ceramic capacitor type structure. It has been shown that heat treatment up to 350$^\circ$C for 60 min does not change the cyclic endurance of the samples $(>10^4)$, increases the ratio of the high-resistance resistive state $(R_{off})$ to the low-resistance resistive state $(R_{on})$ from 25 in the original state to 60 in the heat-treated state and reduces the values of resistive switching voltages to $\pm$4 V. Heat treatment also increases stability parameters $R_{on}(t)$, $R_{off}(t)$. Annealing at temperatures above 350$^\circ$C leads to a significant increase in resistive switching voltages. This process is determined by a significant increase in $\rho$ of the NC during annealing in the temperature range from 400 to 500$^\circ$C.
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