Abstract
The magnetic properties in the La2Ni04+δ system have been investigated by 139La nuclear quadrupole resonance (NQR). The structure of the NQR spectrum at 1.4 K was found to depend sensitively on annealing procedures of the compounds, and therefore on δ. A well-characterized spectrum was obtained for samples oxygenated (δ≧ 0.066) and deoxygenated (δ~0.022) with different structures, exhibiting the existence of the internal magnetic fieldsHmt of ~17.8 kOe nearly parallel to the basal Ni-O plane and ~19.3 kOe perpendicular to the plane. The strength ofHm at the La site was significantly large when compared with that of ~ 1 kOe in La2CuO4 and could not be explained simply by the dipole field caused by Ni spin moments.
| Original language | English |
|---|---|
| Pages (from-to) | 2658-2661 |
| Number of pages | 4 |
| Journal | journal of the physical society of japan |
| Volume | 58 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Jan 1 1989 |
| Externally published | Yes |
Keywords
- antiferromagnetism
- layered perovskite
- nuclear quadrupole resonance
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Wada, S., Kobayashi, T., & Kaburagi, M. (1989). La NQR Study of Antiferromagnetic La2NiO4+δ. journal of the physical society of japan, 58(8), 2658-2661. https://doi.org/10.1143/JPSJ.58.2658