Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of Rashba-spin-orbit coupling on superconducting boron-doped
  nanocrystalline diamond films: evidence of interfacial triplet
  superconductivity   Among the many remarkable properties of diamond, the ability to superconduct
when heavily doped with boron has attracted much interest in the carbon
community. When considering the nanocrystalline boron doped system, the reduced
dimensionality and confinement effects have led to several intriguing
observations most notably, signatures of a mixed superconducting phase. Here we
present ultra-high-resolution transmission electron microscopy imaging of the
grain boundary and demonstrate how the complex microstructure leads to enhanced
carrier correlations. We observe hallmark features of spin-orbit coupling (SOC)
manifested as the weak anti-localization effect. The enhanced SOC is believed
to result from a combination of inversion symmetry breaking at the grain
boundary interfaces along with antisymmetric confinement potential between
grains, inducing a Rashba-type SOC. From a pronounced zero bias peak in the
differential conductance, we demonstrate signatures of a triplet component
believed to result from spin mixing caused by tunneling of singlet Cooper pairs
through such Rashba-SOC grain boundary junctions.

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The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph