Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous reduction of the Lorenz ratio at the quantum critical point in
  YbAgGe   We report measurements of the electrical and thermal transport on the
hexagonal heavy-fermion metal YbAgGe for temperatures $T\geq$ 40 mK and in
magnetic fields $H\parallel ab$ up to 14 T. This distorted Kagome-lattice
system displays a series of magnetic states and a quantum critical point at
$H_c =4.5$ T. The Lorenz ratio $L(T)/L_0$ displays a marked reduction only
close to $H_c$. A $T$-linear contribution below 120 mK, present at all
different fields, allows to extrapolate the Lorenz ratio towards T=0. At the
critical field this yields $L/L_0=0.92\pm 0.03$, suggesting a violation of the
Wiedemann-Franz law due to strong inelastic scattering.

10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con