Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current noise generated by spin imbalance in presence of spin relaxation   We calculate current (shot) noise in a metallic diffusive conductor generated
by spin imbalance in the absence of a net electric current. This situation is
modeled in an idealized three-terminal setup with two biased ferromagnetic
leads (F-leads) and one normal lead (N-lead). Parallel magnetization of the
F-leads gives rise in spin-imbalance and finite shot noise at the N-lead.
Finite spin relaxation results in an increase of the shot noise, which depends
on the ratio of the length of the conductor ($L$) and the spin relaxation
length ($l_s$). For $L\gg l_s$ the shot noise increases by a factor of two and
coincides with the case of the anti-parallel magnetization of the F-leads.

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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci