Core Hole Double-Excitation and Atomiclike Auger Decay in N2

Neeb, M.; Kivimäki, A.; Kempgens, Brigitte; Köppe, H. M.; Feldhaus, J.; Bradshaw, Alexander M.

doi:10.1103/PhysRevLett.76.2250

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Core Hole Double-Excitation and Atomiclike Auger Decay in N₂

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Neeb, M.
Fritz Haber Institute, Max Planck Society;

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Kivimäki, A.
Fritz Haber Institute, Max Planck Society;

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Kempgens, Brigitte
Fritz Haber Institute, Max Planck Society;

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Köppe, H. M.
Fritz Haber Institute, Max Planck Society;

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Feldhaus, J.
Fritz Haber Institute, Max Planck Society;

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Bradshaw, Alexander M.
Fritz Haber Institute, Max Planck Society;

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Citation

Neeb, M., Kivimäki, A., Kempgens, B., Köppe, H. M., Feldhaus, J., & Bradshaw, A. M. (1996). Core Hole Double-Excitation and Atomiclike Auger Decay in N₂. Physical Review Letters, 76(13), 2250-2253. doi:10.1103/PhysRevLett.76.2250.

Cite as: https://hdl.handle.net/21.11116/0000-0009-AA90-4

Abstract

Core hole decay spectra of the free N₂ molecule show evidence for hitherto unobserved molecular resonances both below and above the K-shell photoionization threshold. Based on earlier calculations they are assigned to doubly excited neutral states which could not be seen below threshold in recent high resolution absorption spectra because of the more intense core-to-Rydberg excitations. By calculating the Auger spectrum of core-excited nitrogen atoms, we show that the features are atomiclike.