Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin-valve Effect in Nanoscale Si-based Devices   The silicon (Si) based spin-MOSFET (metal-oxide semiconductor field-effect
transistor) is considered to be the building block of low-power-consumption
electronics, utilizing spin-degrees of freedom in semiconductor devices. In
this paper, we review the latest results on the spin transport in nanoscale
Si-based spin-valve devices, which is important to realize the nanoscale
spin-MOSFET. Our results demonstrate the importance of ballistic transport in
obtaining high spin-dependent output voltage in nanoscale Si spin-valve
devices.

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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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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: q-bio