Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hall Effect in Granular Metals: Weak Localization Corrections   We study the effects of localization on the Hall transport in a granular
system at large tunneling conductance $g_{T}\gg 1$ corresponding to the
metallic regime. We show that the first-order in 1/g_T weak localization
correction to Hall resistivity of a two- or three-dimensional granular array
vanishes identically, $\de \rho_{xy}^{WL}=0$. This result is in agreement with
the one for ordinary disordered metals. Being due to an exact cancellation, our
result holds for arbitrary relevant values of temperature T and magnetic field
H, both in the ``homogeneous'' regime of very low T and H corresponding to
ordinary disordered metals and in the ``structure-dependent'' regime of higher
values of T or H.

20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci