Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Hall effect by surface roughness   The spin Hall effect and its inverse effect, caused by the spin orbit
interaction, provide the interconversion between spin current and charge
current. Since the effects make it possible to generate and manipulate spin
current electrically, how to realize the large effects is an important issue in
both physics and applications. To do so, materials with heavy elements, which
have strong spin orbit interaction, have been examined so far. Here, we propose
a new mechanism to enhance the spin Hall effect without heavy elements, \ie
surface roughness in metallic thin films. We examine Cu and Al thin films with
surface roughness and find that they give the spin Hall effect comparable to
that in bulk Au. We demonstrate that the spin Hall effect induced by surface
roughness has the side jump contribution but not skew scattering.

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The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: math
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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: hep-ex
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The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th