Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mechanisms of spin-dependent heat generation in spin valves   The extra heat generation in spin transport is usually interpreted in terms
of the spin relaxation. By reformulating the heat generation rate, we found
alternative current-force pairs without cross effects, which enable us to
interpret the product of each pair as a distinct mechanism of heat generation.
The results show that the spin-dependent part of the heat generation includes
two terms. One of them is proportional to the square of the spin accumulation
and arises from the spin relaxation. However, the other is proportional to the
square of the spin-accumulation gradient and should be attributed to another
mechanism, the spin diffusion. We illustrated the characteristics of the two
mechanisms in a typical spin valve with a finite nonmagnetic spacer layer.

1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
16
The categories of this paper are: stat