Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic Skyrmions for Cache Memory   Magnetic skyrmions (MS) are particle-like spin structures with whirling
configuration, which are promising candidates for spin-based memory. MS
contains alluring features including remarkably high stability, ultra low
driving current density, and compact size. Due to their higher stability and
lower drive current requirement for movement, skyrmions have great potential in
energy efficient spintronic device applications. We propose a skyrmion-based
cache memory where data can be stored in a long nanotrack as multiple bits.
Write operation (formation of skyrmion) can be achieved by injecting spin
polarized current in a magnetic nanotrack and subsequently shifting the MS in
either direction along the nanotrack using charge current through a spin-Hall
metal (SHM), underneath the magnetic layer. The presence of skyrmion can alter
the resistance of a magnetic tunneling junction (MTJ) at the read port.
Considering the read and write latency along the long nanotrack cache memory, a
strategy of multiple read and write operations is discussed. Besides, the size
of a skyrmion affects the packing density, current induced motion velocity, and
readability (change of resistance while sensing the existence of a skyrmion).
Design optimization to mitigate the above effects is also investigated.

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The categories of this paper are: nlin
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: eess