The electronic structures of Ni3Al, Ni3Ga, Ni3In, and NiGa were studied by high-resolution X-ray photoemission spectroscopy (XPS) and Bremsstrahlung isochromat spectroscopy (BIS). The XPS valence-band and BIS spectra of Ni3Al and Ni3Ga agree well with available density-of-states (DOS) curves derived from band-structure calculations. The asymmetry index of the Ni 2p core levels decreases in the series Ni3Al, Ni3In, Ni3Ga, and NiGa. This observation implies that the density of states at the Fermi level and the number of Ni 3d holes per Ni atom both decrease in the series. (C) 1999 Elsevier Science Ltd. All rights reserved.
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St Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Omsk State Tech Univ, Dept Phys, 11 Mira Prosp, Omsk 644050, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Korusenko, Petr M.
Koroleva, Alexandra, V
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St Petersburg State Univ, Resource Ctr Phys Methods Surface Invest, 7-9 Univ Skaya Nab, St Petersburg 199034, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Koroleva, Alexandra, V
Vereshchagin, Anatoliy A.
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St Petersburg State Univ, Dept Electrochem, Inst Chem, 7-9 Univ Skaya Nab, St Petersburg 199034, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Vereshchagin, Anatoliy A.
Sivkov, Danil, V
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St Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Russian Acad Sci, Komi Sci Ctr, Inst Phys & Math, Ural Branch, Syktyvkar 167982, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Sivkov, Danil, V
Petrova, Olga, V
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St Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Russian Acad Sci, Komi Sci Ctr, Inst Phys & Math, Ural Branch, Syktyvkar 167982, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Petrova, Olga, V
Levin, Oleg, V
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St Petersburg State Univ, Dept Electrochem, Inst Chem, 7-9 Univ Skaya Nab, St Petersburg 199034, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
Levin, Oleg, V
Vinogradov, Alexander S.
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St Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, RussiaSt Petersburg State Univ, Dept Solid State Elect, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia