Double magnetic tunnel junctions (DMTJs) using half-metallic [formula omitted] Heusler alloy electrodes were fabricated. Their tunnel magnetoresistance (TMR) effects were then investigated. Large TMR ratios were observed as 25% at room temperature and as 320% at 6 K. The bias voltage dependence of tunnel conductance suggests a half-metallic nature of the [formula omitted] electrode. These results show that high-quality DMTJ with half-metallic Heusler alloy electrodes was fabricated and that the DMTJ exhibited the expected performance.
ASJC Scopus subject areas
- Physics and Astronomy(all)