Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Commensurability oscillations in the Hall resistance of unidirectional
  lateral superlattices   We have observed commensurability oscillations (CO) in the Hall resistance
$R_{yx}$ of a unidirectional lateral superlattice (ULSL). The CO, having small
amplitudes ($\sim$ 1 $\Omega$) and being superposed on a roughly three-orders
of magnitude larger background, are obtained by directly detecting the
difference in $R_{yx}$ between the ULSL area and the adjacent unmodulated
two-dimensional electron gas area, and then extracting the odd part with
respect to the magnetic field. The CO thus obtained are compared with a
theoretical calculation and turn out to have the amplitude much smaller than
the theoretical prediction. The implication of the smaller-than-predicted CO in
$R_{yx}$ on the thermoelectric power of ULSL is briefly discussed.

0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th