Abstract
We have studied the Th 4f core level spectra in a number of related Th-intemetallics, which exhibit interesting trends in terms of the intensity and the energy separation of the satellite with respect to the main signal. With the help of model calculations, we correlate the changes in the core level spectra to the density of states (DOS) in the valence band region. We have studied in detail the effect of changes in the strenght of 5f-conduction band hybridization (Δ), the energy position of the empty 5f level (ε f ) and the DOS in the vicinity ofE F on the spectral shape of Th 4f region. These parameters are also found to affect the binding energies of the main peaks.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Fuggle, J.C., Hillebrecht, F.U., Zolnierek, Z., Lässer, R., Freiburg, Ch., Gunnarsson, O., Schönhammer, K.: Phys. Rev. B27, 7330 (1983); Gunnarsson, O., Schönhammer, K.: Phys. Rev. Lett50, 604 (1983); Gunnarsson, O., Schönhammer, K.: Phys. Rev. B28, 4315 (1983)
Gunnarsson, O., Schönhammer, K., Sarma, D.D., Hillebrecht, F.U., and Campagna, M.: Phys. Rev B (in press)
Sarma, D.D., Hillebrecht, F.U., Martensson, N.: (to be published)
Hillebrecht, F.U., Keppels, J., Otto, R.: (to be published)
Fuggle, J.C., et al.: (to be published)
Scöfield, J.H.: J. Electron Spectrosc. Relat. Phenom.8, 129 (1976)
Schneider, W.-D., Laubschat, C.: Phys. Rev. B23, 997 (1981)
Exceptions are given by, e.g.LaAu, LaAu 2,CeAu andCeAu 2 (Fuggle, J.C., Sawatzky, G.A., Gunnarsson, O., Schönhammer, K.: (unpublished) where the final statef-level falls in the largeAu d-DOS and the satellite obtains a large broadening. DOS effects have also been observed for adsorbates (Gunnarsson, O., Schönhammer, K.: Phys. Rev. Lett.41, 1608 (1978); Umbach, E.: Solid State Commun.51, 365 (1984))
Fuggle, J.C., Campagna, M., Zolnierek, Z., Lässer, R., Platau, A.: Phys. Rev. Lett.45, 1597 (1980)
Fuggle, J.C., Zolnierek, Z.: Solid State Commun.38, 799 (1981)
Skriver, H.L., The LMTO Method. In: Springer Series in Solid State Sciences. Vol. 41, Berlin, Heidelberg, New York: Springer 1984
Baer, Y., Ott, H.R., Andres, K.: Solid State Commun.36, 387 (1980)
Nilsson, A., Martensson, N., Hedman, J., Eriksson, B., Bergmann, R., Gelius, U.: Surf. Sci.162, 51 (1985) and references therein
Miedema, A.R.: Z. Metallkd.69, 455 (1978)
Grohs, H., Höchst, H., Steiner, P., Hüfner, S., Buschow, K.H.J.: Solid State Commun.33, 573 (1980)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sarma, D.D., Hillebrecht, F.U., Gunnarsson, O. et al. Systematics in the core level spectra of Th-intermetallics. Z. Physik B - Condensed Matter 63, 305–311 (1986). https://doi.org/10.1007/BF01303810
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01303810