Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transverse magnetic heat transport on the topological surface   We investigate transverse magnetic heat transport on the surface of a
topological insulator on which a ferromagnet is attached. We present general
expressions of the Nernst coefficient and the thermal Hall conductivity, which
are reduced to simple forms at low temperatures. It is shown that the Nernst
coefficient and the thermal Hall conductivity show non-monotonous dependence on
temperature. At low temperature, they have linear dependence on temperature.
From the behavior of the Nernst coefficient at low temperature, one can
estimate the magnitude of the gap induced by time-reversal symmetry breaking.
Moreover, we find that the Nernst coefficient can be used to map the Berry
phase structure. These results open up possibility to control thermal Hall
currents magnetically.

7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an