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curves of LCMO/SNTO heterojunction at 60, 140, 220, and . The inset: schematic illustration of the electrodes setting.
The magnetic tunable curves of the system with the negative and positive bias voltages under magnetic fields of 0, 5, and . (a) and (b), (c) and (d), (e) and (f), and (g) and (h) are taken at 60, 90, 180, and , respectively. The insets of (b), (d), (f), and (h) enlarge the curves of the system at the small bias current.
The magnetic field dependence of MR at 60, 90, 180, and for two different bias currents (open symbols) and (closed symbols).
The temperature dependence of MR at the bias current measured under different fields.
Schematic diagram of spin dependent (large arrows) density of states. (a) depicts the case of strong Hund’s coupling and (b) depicts the case of weak Hund’s coupling.
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