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Type-I superconductivity in the Dirac semimetal<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>PdTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>
The superconductor ${\mathrm{PdTe}}_{2}$ was recently classified as a type-II Dirac semimetal, and advocated to be an improved platform for topological superconductivity. Here, we report magnetic and transport measurements conducted to determine the nature of the superconducting phase. Surprisingly, we find that ${\mathrm{PdTe}}_{2}$ is a type-I superconductor with ${T}_{c}=1.64$ K and …