Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous Nernst effect on a magnetically-doped topological insulator
  surface: A Green's function approach   By generalizing the Kubo-Streda formula for calculating electrical
conductivities to the thermoelectric coefficients, we theoretically study the
anomalous Nernst effect (ANE) on the surface of a topological insulator induced
by a finite concentration of magnetic impurities. The ANE is found to be
modulated by the impurity scattering and thermal fluctuations, simultaneously,
and so exhibits rich structures in the energy space. While the anomalous Hall
conductivity is half-integer quantized with the Fermi level across the
magnetic-impurity-induced gap, the anomalous Nernst signal (ANS) is fully
suppressed and the thermopower is linear-dependent on the Fermi energy. Around
the magnetic-impurity-induced localized levels, the ANS and thermopower are
resonant enhanced. The suppression and enhancement of the thermoelectric
coefficients will compete with each other as the magnetic impurity potential
increases continually. More interestingly, when a finite charge potential is
included, the resonant peaks of the ANS and thermopower will be renormalized,
making the signs of the ANS and thermopower tunable by the strength of the
charge potential.

24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org