Final-state effects in inverse photoemission from heavy-fermion compounds

15 January 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 35 (2) , 902-905
https://doi.org/10.1103/physrevb.35.902

Abstract

It is shown that the anomalously broad resonances observed in inverse photoemission [bremsstrahlung isochromat spectroscopy (BIS)] from uranium-based heavy-fermion systems can be understood in terms of dynamic relaxation effects. The transient, nonadiabatic component of the conduction-electron response to BIS-promoted charge gives rise to final-state processes which show up as significant broadening and shifting of the spectra. Calculations based on the Anderson model give spectra which qualitatively agree with the measured ones.

Keywords

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