Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A straightforward 2$\omega$ technique for the measurement of the Thomson
  effect   We present a simplified, rapid, and accurate method for the measurement of
the thermoelectric Thomson coefficient by the dynamical heating of a suspended
wire by an alternating current. By applying a temperature gradient across the
wire, we find that the response at the second harmonic of the excitation
frequency is directly proportional to the Thomson coefficient. The absolute
thermoelectric coefficient of a single material can therefore be extracted with
high precision by a phase sensitive detector. We test our method on platinum
and nickel wires and develop both analytical and numerical models to determine
the leading sources of error.

9
The categories of this paper are: nlin
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas