Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible Scale Invariant Linear Magnetoresistance in Pyrochlore Iridates
  Bi$_2$Ir$_2$O$_7$   We report the observation of a linear magnetoresistance in single crystals
and epitaxial thin films of the pyrochlore iridate Bi$_2$Ir$_2$O$_7$. The
linear magnetoresistance is positive and isotropic at low temperatures, without
any sign of saturation up to 35 Tesla. As temperature increases, the linear
field dependence gradually evolves to a quadratic field dependence. The
temperature and field dependence of magnetoresistance of Bi$_2$Ir$_2$O$_7$
bears strikingly resemblance to the scale invariant magnetoresistance observed
in the strange metal phase in high Tc cuprates. However, the residual
resistivity of Bi$_2$Ir$_2$O$_7$ is more than two orders of magnitude higher
than the curpates. Our results suggest that the correlation between linear
magnetoresistance and quantum fluctuations may exist beyond high temperature
superconductors.

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The categories of this paper are: math
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
16
The categories of this paper are: stat
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The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg