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X-ray-absorption studies of Nd sub 2 minus x Ce sub x CuO sub 4

Journal Article · · Physical Review, B: Condensed Matter; (USA)
; ; ; ;  [1]; ; ; ; ;  [2];  [3]; ; ; ;  [4]; ;  [5]
  1. Department of Physics, State University of New York at Buffalo, Buffalo, NY (USA)
  2. Department of Physics, Brookhaven National Laboratory, Upton, NY (USA)
  3. Instrumentation Division, Brookhaven National Laboratory, Upton, NY (USA)
  4. University of Houston, Houston, TX (USA). Department of Physics University of Houston, Houston, TX (USA). Texas Center for Superconductivity
  5. Department of Physics, Temple University, Philadelphia, PA (USA)

O {ital K}-edge absorption studies of Ce-doped Nd{sub 2}CuO{sub 4} using both total electron yield and fluorescence emission show similar features to undoped Nd{sub 2}CuO{sub 4}. This is in contrast to that observed for Sr-doped La{sub 2}CuO{sub 4} and YBa{sub 2}Cu{sub 3}O{sub 7}. In addition, {ital M}-edge absorption spectra of Ce and Nd show that Ce ions are in an intermediate valence state and Nd remains in the trivalent state. Results are presented and discussed along with those of other Cu oxide superconductors.

DOE Contract Number:
AC02-76CH00016
OSTI ID:
6446034
Journal Information:
Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:7; ISSN PRBMD; ISSN 0163-1829
Country of Publication:
United States
Language:
English