Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disentangling surface and bulk photoemission using circularly polarized
  light   We show that in the angle resolved photoemission spectroscopy (ARPES)
near-surface induced fields can be useful for disentangling the surface and
bulk related emission. The jump of the dielectric function at the interface
results in a nonzero term $\operatorname{div}\textbf{A}$ in the photoemission
matrix element. The term happens to be significant approximately within the
first unit cell and leads to the circular dichroism for the states localized
therein. As an example we use ARPES spectra of an YBa$_2$Cu$_3$O$_{7-\delta}$
crystal to distinguish between the overdoped surface related component and its
bulk counterparts.

6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph