Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear nonsaturating magnetoresistance in the Nowotny chimney ladder
  compound Ru$_2$Sn$_3$   We present magnetoresistivity measurements in high-quality single crystals of
the Nowotny chimney ladder compound Ru$_2$Sn$_3$. We find a linear and
nonsaturating magnetoresistance up to 20 T. The magnetoresistance changes with
the magnetic field orientation at small magnetic fields, from a positive to a
negative curvature. Above 5 T, the magnetoresistance shows no sign of
saturation up to 20 T for any measured angle. The shape of the anisotropy in
the magnetoresistance remains when increasing temperature and Kohler's rule is
obeyed. We associate the linear and nonsaturating magnetoresistance to a small
Fermi surface with hot spots, possibly formed as a consequence of the
structural transition. We discuss the relevance of electron-electron
interactions under magnetic fields and aspects of the topologically nontrivial
properties expected in Ru$_2$Sn$_3$.

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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
3
The categories of this paper are: physics
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom