Kreuzer, Sebastian and Moser, Jürgen and Wegscheider, Werner and Weiss, Dieter and Bichler, Max and Schuh, Dieter
Spin polarized tunneling through single-crystal GaAs(001) barriers.
Applied Physics Letters 80 (1-4), pp. 4582-4584.
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We investigate spin-dependent transport through an epitaxial GaAs(001) barrier sandwiched between polycrystalline iron films. Electron transport through the barrier is dominated by quantum mechanical tunneling, demonstrated by a nonlinear I–V characteristic, an exponential dependence of the tunneling current on the barrier thickness and the temperature dependence of the current. Though small a ...
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