Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Manifestation of the bulk phase transition in the edge energy spectrum
  in a two dimensional bilayer electron system   We use a quasi-Corbino sample geometry with independent contacts to different
edge states in the quantum Hall effect regime to investigate the edge energy
spectrum of a bilayer electron system at total filling factor $\nu=2$. By
analyzing non-linear $I-V$ curves in normal and tilted magnetic fields we
conclude that the edge energy spectrum is in a close connection with the bulk
one. At the bulk phase transition spin-singlet - canted antiferromagnetic phase
$I-V$ curve becomes to be linear, indicating the disappearance or strong
narrowing of the $\nu=1$ incompressible strip at the edge of the sample.

29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci