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Superconducting and normal-state properties of the layered boride<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">Os</mml:mi><mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
$\mathrm{Os}{\mathrm{B}}_{2}$ crystallizes in an orthorhombic structure $(Pmmn)$ which contains alternate boron and osmium layers stacked along the $c$ axis. The boron layers consist of puckered hexagons as opposed to the flat graphite-like boron layers in $\mathrm{Mg}{\mathrm{B}}_{2}$. $\mathrm{Os}{\mathrm{B}}_{2}$ is reported to become superconducting below $2.1\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. We report results of the dynamic …