Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin accumulation with spin-orbit interaction   Spin accumulation is a crucial but imprecise concept in spintronics. In
metal-based spintronics it is characterized in terms of semiclassical
distribution functions. In semiconductors with a strong spin-orbit coupling the
spin accumulation is interpreted as a superposition of coherent eigenstates.
Both views can be reconciled by taking into account the electron-electron
interaction: a sufficiently strong self-consistent exchange field reduces a
spin accumulation to a chemical potential difference between the two spin bands
even in the presence of spin-orbit coupling. We demonstrate the idea on a clean
two-dimensional electron gas (2DEG) by showing how the exchange field protects
a spin accumulation from dephasing and introduces an easy-plane anisotropy.

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The categories of this paper are: hep-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph