Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Predicted Rectification and Negative Differential Spin Seebeck Effect at
  Magnetic Interfaces   We study the nonequilibrium Seebeck spin transport across metal-magnetic
insulator interfaces. The conjugate-converted thermal-spin transport is
assisted by the exchange interaction at the interface, between conduction
electrons in the metal lead and localized spins in the insulating magnet lead.
We predict the rectification and negative differential spin Seebeck effect and
resolve their microscopic mechanism, as a consequence of the
strongly-fluctuated electronic density of states in the metal lead. The
rectification of spin Peltier effect is also discussed. The phenomena predicted
here are relevant for designing efficient spin/magnon diode and transistor,
which could play crucial roles in controlling energy and information in
functional devices.

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The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
19
The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex