139 La NQR study of antiferromagnetic La2NiO4+δ and La2CoO4−δ

Shinji Wada, Tatsuo Kobayashi, Makoto Kaburagi, Tsuyoshi Kajitani, Syoichi Hosoya, Tsuguo Fukuda, Shigehumi Onodera, Yoshihiro Yamada, Kazuyuki Shibutani, Rikuo Ogawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


139La NQR study has been performed on La2NiO4+δ and La2CoO4−δ. Experimental spectra at low temperatures provided an evidence for the existence of antiferromagnetic ordering in both of them. The internal field at La site in La2NiO4+δ (19.3 kOe, ∥ c-axis) and in La2CoO4−δ (30.5 kOe, ∥ c-axis) was significantly large comparing with that in La2CuO4−δ (1.0 kOe 1 ⊥ c-axis), suggesting an importance of exchange interactions via apex oxygen atoms.

Original languageEnglish
Pages (from-to)1313-1314
Number of pages2
JournalPhysica B: Condensed Matter
Publication statusPublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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