Spin excitations in the antiferromagnet NaNi O2

S. De Brion, C. Darie, M. Holzapfel, D. Talbayev, L. Mihály, F. Simon, A. Jánossy, G. Chouteau

Research output: Contribution to journalArticle

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Abstract

In NaNi O2, Ni3+ ions form a quasi-two-dimensional triangular lattice of S=1 2 spins. The magnetic order observed below 20 K has been described as an A type antiferromagnet with ferromagnetic layers weakly coupled antiferromagnetically. We studied the magnetic excitations with the electron spin resonance for frequencies 1-20 cm-1, in magnetic fields up to 14 T. The bulk of the results are interpreted in terms of a phenomenological model involving biaxial anisotropy for the spins: a strong easy-plane term, and a weaker anisotropy within the plane.

Original languageEnglish
Article number094402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number9
DOIs
Publication statusPublished - Mar 2 2007

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Anisotropy
anisotropy
excitation
Paramagnetic resonance
electron paramagnetic resonance
Ions
Magnetic fields
magnetic fields
ions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

De Brion, S., Darie, C., Holzapfel, M., Talbayev, D., Mihály, L., Simon, F., ... Chouteau, G. (2007). Spin excitations in the antiferromagnet NaNi O2. Physical Review B - Condensed Matter and Materials Physics, 75(9), [094402]. https://doi.org/10.1103/PhysRevB.75.094402

Spin excitations in the antiferromagnet NaNi O2. / De Brion, S.; Darie, C.; Holzapfel, M.; Talbayev, D.; Mihály, L.; Simon, F.; Jánossy, A.; Chouteau, G.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 9, 094402, 02.03.2007.

Research output: Contribution to journalArticle

De Brion, S. ; Darie, C. ; Holzapfel, M. ; Talbayev, D. ; Mihály, L. ; Simon, F. ; Jánossy, A. ; Chouteau, G. / Spin excitations in the antiferromagnet NaNi O2. In: Physical Review B - Condensed Matter and Materials Physics. 2007 ; Vol. 75, No. 9.
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AU - Jánossy, A.

AU - Chouteau, G.

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