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X-Ray Absorption Spectroscopy of the Rare Earth Orthophosphates

Published online by Cambridge University Press:  15 February 2011

D. K. Shuh ,
L. J. Terminello ,
L. A. Boatner  and
M. M. Abraham
D. K. Shuh
Affiliation:
Lawrence Berkeley Laboratory, Berkeley, CA 94720
L. J. Terminello
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550
L. A. Boatner
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37830
M. M. Abraham
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37830
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Abstract

X-ray Absorption Spectroscopy (XAS) of the Rare Earth (RE) 3d levels yields sharp peaks near the edges as a result of strong, quasi-atomic 3d104fn→3d94fn+1 transitions and these transitions exhibit a wealth of spectroscopic features. The XAS measurements of single crystal REPO4 (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Er) at the 3d edge were performed in the total yield mode at beam line 8–2 at the Stanford Synchrotron Radiation Laboratory (SSRL). The XAS spectra of the RE ions in the orthophosphate matrix generally resemble the XAS of the corresponding RE metal. This is not unexpected and emphasizes the major contribution of the trivalent state to the electronic transitions at the RE 3d edges. These spectra unequivocally identify the transitions originating from well-characterized RE cores and correlate well with previous theoretical investigations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 307: Symposium L – Applications of Synchrotron Radiation Techniques to Materials Science , 1993 , 95
Copyright
Copyright © Materials Research Society 1993

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References

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