Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Systematic investigation of electrical contact barriers between
  different electrode metals and layered GeSe   For electronic and photoelectronic devices based on GeSe, an emergent two
dimensional monochalcogenide with many exciting properties predicted, good
electrical contacts are of great importance for achieving high device
performances and exploring the intrinsic physics of GeSe. In this article, we
use temperature-dependent transport measurements and thermionic emission theory
to systematic investigate the contact-barrier heights between GeSe and six
common electrode metals, Al, Ag, Ti, Au, Pt and Pd. These metals cover a wide
range of work functions (from ~ 3.6 eV to ~ 5.7 eV). Our study indicates that
Au forms the best contact to the valence band of GeSe, even though Au does not
possess the highest work function among the metals studied. This behavior
clearly deviates from the expectation of Schottky-Mott theory and indicates the
importance of the details at the interfaces between metals and GeSe.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph