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Pressure effects on the heavy-fermion antiferromagnet CeAuSb<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn mathvariant="bold">2</mml:mn></mml:msub></mml:math>
The $f$-electron compound CeAuSb${}_{2}$, which crystallizes in the ZrCuSi${}_{2}$-type tetragonal structure, orders antiferromagnetically between 5 and 6.8 K, where the antiferromagnetic transition temperature ${T}_{N}$ depends on the occupancy of the Au site. Here we report the electrical resistivity and heat capacity of a high-quality crystal CeAuSb${}_{2}$ with ${T}_{N}$ of 6.8 …