Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resistivity of Mn$_{1-x}$Fe$_x$Si single crystals: Evidence for quantum
  critical behavior   Resistivity measurements have been made on Mn$_{1-x}$Fe$_x$Si single crystals
between 2 and 300K for $x$ = 0, 0.05, 0.08, 0.12 and 0.15. Fe doping is found
to depress the magnetic ordering temperature from 30K for $x$ = 0 to below 2K
for $x$ = 0.15. Although Fe doping results in a large increase of the
low-temperature residual resistivity, the temperature dependence of the
resistivity above the magnetic transition remains practically unaffected by
increasing Fe content. An analysis of the temperature derivative of the
resistivity provides strong evidence for the existence of a non-Fermi-liquid
ground state near $x$ = 0.15 and thus for a quantum critical point tuned by Fe
content.

17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys