Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin relaxation in strained graphene nanoribbons: armchair vs zigzag
  edges   We study the influence of ripple waves originating from the electromechanical
effects on spin relaxation caused by electromagnetic fields in armchair and
zigzag graphene nanoribbons (GNRs). By utilizing analytical expressions
supported by numerical simulations, we show that it is possible to tune the
spin flip behaviors ON and OFF due to ripple waves in GNRs for potential
applications in straintronic devices. This finding is similar to recently made
observations on the design of spintronic devices in III-V semiconductor quantum
dots, where the sign change in the effective Land$\mathrm{\acute{e}}$
$g$-factor can be engineered with the application of gate controlled electric
fields. In particular, we show that the tuning of spin extends to larger widths
for the armchair GNRs than for the zigzag GNRs. Here we also report that the
relaxation rate vanishes like $L^5$.

24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess