Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strain release at the graphene-Ni(100) interface investigated by in-situ
  and operando scanning tunnelling microscopy   Interface strain can significantly influence the mechanical, electronic and
magnetic properties of low-dimensional materials. Here we investigated by
scanning tunneling microscopy how the stress introduced by a mismatched
interface affects the structure of a growing graphene (Gr) layer on a Ni(100)
surface in real time during the process. Strain release appears to be the main
factor governing morphology, with the interplay of two simultaneous driving
forces: on the one side the need to obtain two-dimensional best registry with
the substrate, via formation of moir\'e patterns, on the other side the
requirement of optimal one-dimensional in-plane matching with the transforming
nickel carbide layer, achieved by local rotation of the growing Gr flake. Our
work suggests the possibility of tuning the local properties of two-dimensional
films at the nanoscale through exploitation of strain at a one-dimensional
interface.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph