Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current Fluctuations Driven by Ferromagnetic and Antiferromagnetic
  Resonance   We consider electron transport in ferromagnets or antiferromagnets sandwiched
between metals. When spins in the magnetic materials precess, they emit
currents into the surrounding conductors. Generally, adiabatic pumping in
mesoscopic systems also enhances current fluctuations. We generalize the
description of current fluctuations driven by spin dynamics in three ways using
scattering theory. First, our theory describes a general junction with any
given electron scattering properties. Second, we consider antiferromagnets as
well as ferromagnets. Third, we treat multiterminal devices. Using shot
noise-induced current fluctuations to reveal antiferromagnetic resonance
appears to be easier than using them to reveal ferromagnetic resonance. The
origin of this result is that the associated energies are much higher as
compared to the thermal energy. The thermal energy governs the Johnson-Nyquist
that is independent of the spin dynamics. We give results for various
junctions, such as ballistic and disordered contacts. Finally, we discuss
experimental consequences.

6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
3
The categories of this paper are: physics
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph