(color online) (a) Diagram of AlOx-based MSV (from Ref. [26], Fig. 1(a)). (b) Temperature-dependent resistance of Co/AlOx/NiFe junction based on leaky (blue squares) or non-leaky (red circles) AlOx barriers (from Ref. [26], Fig. 2(a)). (c)–(d) Current–voltage curves of BCP-SVs with non-leaky and leaky AlOx, respectively, indicating tunneling and hopping transport mode (from Ref. [26], Figs. 5(a)–5(b)).
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