✦ LIBER ✦

Quantum transport of two-dimensional electron gas through finite lateral magnetic superlattice

✍ Scribed by Yao-Ming Mu; Y. Fu; M. Willander

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 135 KB
Volume: 22
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1996.0154

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✦ Synopsis

We have investigated the quantum transport properties of electrons through multiplemagnetic-barrier structures, where the magnetic barriers are created by depositing ferromagnetic stripes on top of a heterostructure. The transmission coefficient and currentdensity-voltage (J -V ) characteristic are calculated. It is shown that the quantum transport is anisotropic and depends on the transmission direction of the incoming electron. An external electric field strengthens the anisotropy of the transmission. The J -V characteristic exhibits negative conductivities similar to a multiple-electric-barrier structure.

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