Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear magnetotransport in a dc-current-biased graphene   A balance-equation scheme is developed to investigate the magnetotransport in
a dc-current-biased graphene. We examine the Shubnikov-de Haas oscillation
under a nonzero bias current. With an increase in the current density, the
oscillatory differential resistivity exhibits phase inversion, in agreement
with recent experimental observation. In the presence of surface optical
phonons, a second phase inversion may occur at higher dc bias, due to the
reduced influence of electron-heating and the enhanced direct effect of current
on differential magnetoresistivity. We also predict the appearance of
current-induced magnetoresistance oscillation in suspended graphene at lower
magnetic fields and larger current densities. For the graphene mobility
currently available ($\approx 20\,{\rm m^2/Vs}$), the oscillatory behavior may
be somewhat altered by magnetophonon resonance arising from intrinsic acoustic
phonon under finite bias current condition.

13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio