Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unravelling Dzyaloshinskii-Moriya interaction and chiral nature of
  Graphene/Cobalt interface   A major challenge for future spintronics is to develop suitable spin
transport channels with long spin lifetime and propagation length. Graphene can
meet these requirements, even at room temperature. On the other side, taking
advantage of the fast motion of chiral textures, i.e., N\'eel-type domain walls
and magnetic skyrmions, can satisfy the demands for high-density data storage,
low power consumption and high processing speed. We have engineered epitaxial
structures where an epitaxial ferromagnetic Co layer is sandwiched between an
epitaxial Pt(111) buffer grown in turn onto MgO(111) substrates and a graphene
layer. We provide evidence of a graphene-induced enhancement of the
perpendicular magnetic anisotropy up to 4 nm thick Co films, and of the
existence of chiral left-handed N\'eel-type domain walls stabilized by the
effective Dzyaloshinskii-Moriya interaction (DMI) in the stack. The experiments
show evidence of a sizeable DMI at the gr/Co interface, which is described in
terms of a conduction electron mediated Rashba-DMI mechanism and points
opposite to the Spin Orbit Coupling-induced DMI at the Co/Pt interface. In
addition, the presence of graphene results in: i) a surfactant action for the
Co growth, producing an intercalated, flat, highly perfect fcc film,
pseudomorphic with Pt and ii) an efficient protection from oxidation. The
magnetic chiral texture is stable at room temperature and grown on insulating
substrate. Our findings open new routes to control chiral spin structures using
interfacial engineering in graphene-based systems for future spin-orbitronics
devices fully integrated on oxide substrates.

22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph