Effect of boron non-stoichiometry on B-site in perovskite type structure ScBxRh3 and CeBxRh3 on charges of atoms on A-site: Study by X-ray photoelectron and nuclear magnetic resonance spectroscopies

Masaoki Oku, Toetsu Shishido, Takeshi Shinohara, Qiang Sun, Yoshiyuki Kawazoe, Kazuo Nakajima, Kazuaki Wagatsuma

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The solid solutions of ScBRh3-ScRh3 and CeBRh 3-CeRh3 are synthesized by the arc melting method, where RBRh3 and RRh3 (R=rare earth element) have perovskite and AuCu3 type structures, respectively. The binding energy of Sc 2p 3/2 for ScBxRh3 increases with the boron concentration. The Knight shift of 45Sc observed by nuclear magnetic resonance spectroscopy decreases with increase of boron concentration. The decrement of the Knight shift corresponds the Sc 4s electron density at the Fermi level. The intensity ratio of f2:f1:f0 of Ce 3d XPS spectrum changes with boron concentration of CeBxRh 3. It is concluded that in both cases of ScBxRh 3 and CeBxRh3 the charge on the atoms on A-site changes with the concentration of the atoms on B-site, where the atoms are not directly bound.

Original languageEnglish
Pages (from-to)457-460
Number of pages4
JournalJournal of Solid State Chemistry
Volume177
Issue number2
DOIs
Publication statusPublished - 2004 Feb

Keywords

  • CeBRh
  • Charge of atoms on A-site
  • Non-stoichiometry on B-site
  • Perovskite type structure borides
  • ScBRh

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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