Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Injection Enhancement Through Schottky Barrier Superlattice Design   We predict it is possible to achieve high-efficiency room-temperature spin
injection from a mag- netic metal into InAs-based semiconductors using an
engineered Schottky barrier based on an InAs/AlSb superlattice. The Schottky
barrier with most metals is negative for InAs and positive for AlSb. For such
metals there exist InAs/AlSb superlattices with a conduction band edge
perfectly aligned with the metal's Fermi energy. The initial AlSb layer can be
grown to the thickness required to produce a desired interface resistance. We
show that the conductivity and spin lifetimes of such superlattices are
sufficiently high to permit efficient spin injection from ferromagnetic metals.

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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph