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Conventional superconductivity in SrPd<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>Ge<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>
The electronic structure of SrPd${}_{2}$Ge${}_{2}$ single crystals is studied by angle-resolved photoemission spectroscopy (ARPES), scanning tunneling spectroscopy (STS), and band structure calculations within the local-density approximation (LDA). The STS measurements show a single $s$-wave superconducting energy gap $\ensuremath{\Delta}(0)$ $=$ 0.5 meV. The photon-energy dependence of the observed Fermi surface reveals …