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Transport of electrons in asymmetric multiple-barrier magnetic structures is inspected in detail with transfer-matrix technique. It is found that, compared with transport in symmetric double-barrier magnetic structures, both the transmission and the conductance are drastically reduced for electrons tunneling through asymmetric double-barrier magnetic cases, and the asymmetric magnetic structure possesses stronger wave-vector filtering properties. For electrons tunneling through the nanostructure consisting of more magnetic barriers, the transmission and the conductance exhibit more complicated and sharper peaks.
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Guo et al. (1997) studied this question.
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