N<sub>4,5</sub>O<sub>2,3</sub>N<sub>6,7</sub> and N<sub>4,5</sub>O<sub>2,3</sub>O<sub>2,3</sub> resonance Auger processes in solid samarium
O -P Sairanen; S Aksela; O -P Sairanen; Dept. of Phys., Oulu Univ., Finland; S Aksela; Dept. of Phys., Oulu Univ., Finland
Журнал:
Journal of Physics: Condensed Matter
Дата:
1992-11-16
Аннотация:
Resonance Auger processes (AP) in solid samarium after 4d to 4f excitations have been studied using electron spectroscopy, with synchrotron radiation. The N<sub>4,5</sub>O<sub>2,3</sub>O<sub>2,3</sub> and N<sub>4,5</sub>O<sub>2,3</sub>N<sub>6,7</sub> resonance AP were found to pay a significant role in excitations corresponding to the low-energy side of the resonance region. Kinetic energy shifts relative to the normal N<sub>4,5</sub>O<sub>2,3</sub>O<sub>2,3</sub> and N<sub>4,5</sub>O<sub>2,3</sub>N<sub>6,7</sub> AP were estimated to be 1.0 eV and 1.5 eV, respectively. In excitation corresponding to the main giant resonance the normal AP were found to be stronger than in the case of heavier rare earths indicating stronger continuum-like character for the main resonance in samarium.
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