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Oxidation states of the ``unusual`` rare earths (R=Ce, Pr and Tb) in double layer high-T{sub c} superconductors

Conference ·
OSTI ID:264588
 [1]; ; ;
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)

X-ray absorption and magnetization experiments are used to describe the oxidation states of the rare earths R= Ce, Pr, and Tb in the double layer high-Tc superconducting series RBa{sub 2}Cu{sub 3}O{sub 7} and Pb{sub 2}Sr{sub 2}R{sub 1-x}Ca{sub x}Cu{sub 3}O{sub 8}. We obtained the same oxidation states for the rare earths in these two classes of compounds, namely, R=Ce tetravalent and R=Pr and Tb trivalent.

Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
264588
Report Number(s):
ANL/CHM/CP--90448; CONF-9608104--1; ON: DE96012764
Country of Publication:
United States
Language:
English

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