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Electronic structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>BaNi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>P</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>observed by angle-resolved photoemission spectroscopy

Electronic structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>BaNi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>P</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>observed by angle-resolved photoemission spectroscopy

We have performed an angle-resolved photoemission spectroscopy (ARPES) study of ${\mathrm{BaNi}}_{2}{P}_{2}$ that shows a superconducting transition at ${T}_{c}$ $\ensuremath{\sim}$ 2.5 K. We observed hole and electron Fermi surfaces (FSs) around the Brillouin zone center and corner, respectively, and the shapes of the hole FSs dramatically changed with photon energy, indicating …