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From valence fluctuations to long-range magnetic order in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>EuPd</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:msub><mml:mi>Si</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>โ</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Ge</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mo>)</mml:mo></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> single crystals
${\mathrm{EuPd}}_{2}{\mathrm{Si}}_{2}$ is a valence-fluctuating system undergoing a temperature-induced valence crossover at ${T}_{V}^{\ensuremath{'}}\ensuremath{\approx}160\phantom{\rule{4pt}{0ex}}\mathrm{K}$. We present the successful single-crystal growth using the Czochralski method for the substitution series ${\mathrm{EuPd}}_{2}{({\mathrm{Si}}_{1\ensuremath{-}x}{\mathrm{Ge}}_{x})}_{2}$, with substitution levels $x\ensuremath{\le}0.15$. A careful determination of the germanium content revealed that only half of the nominal concentration is built into the โฆ