Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Suppression of Nonmagnetic Insulating State by Application of Pressure
  in Mineral Tetrahedrite Cu$_{12}$Sb$_{4}$S$_{13}$   The mineral tetrahedrite Cu$_{12}$Sb$_{4}$S$_{13}$ exhibits a first-order
metal--insulator transition (MIT) at $T_{\rm MI}$ = 85 K and ambient pressure.
We measured the $^{63}$Cu-NMR at ambient pressure and the resistivity and
magnetic susceptibility at high pressures. $^{63}$Cu-NMR results indicate a
nonmagnetic insulating ground state in this compound. The MIT is monotonically
suppressed by pressure and disappears at $\sim1.0$ GPa. Two other anomalies are
observed in the resistivity measurements, and the pressure -- temperature phase
diagram of Cu$_{12}$Sb$_{4}$S$_{13}$ is constructed.

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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int