Chapter 93 Intermultiplet transitions using neutron spectroscopy

摘要: Publisher Summary This chapter discusses intermultiplet transitions using neutron spectroscopy. In intermediate valence compounds, studying the mixing of two configurations is practically possible. Neutrons have until recently only been able to measure spin fluctuations ground state multiplet, which gives no information on its composition unless absolute cross section determined very reliably. Intermultiplet from different electronic can be distinguished in scattering by their energies and dependence intensities wavevector transfers. method determining fluctuating systems not subject major corrections due final-state effects or surface sensitivity photoemission X-ray absorption-edge studies. The transition involves reorientation orbital angular momenta 4f-electron wavefunctions rather than removal an electron shell; therefore, problems screening do arise. Intraatomic spectra are sensitive degree hybridization 4f shell. because renormalization and, particular, reduction Slater integral parameters as increases.