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Title: Spin Excitations in the Antiferromagnet NaNiO2

Abstract

In NaNiO2 , Ni3+ ions form a quasi-two-dimensional triangular lattice of S=1/2 spins. The magnetic order observed below 20K 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 20cm-1 , in magnetic fields up to 14T . 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

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930676
Report Number(s):
BNL-81191-2008-JA
Journal ID: ISSN 0163-1829; PRBMDO; TRN: US0900020
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B: Condensed Matter and Materials Physics; Journal Volume: 75
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANISOTROPY; ELECTRON SPIN RESONANCE; MAGNETIC FIELDS; SPIN; NICKEL IONS; national synchrotron light source

Citation Formats

de Brion,S., Darie, C., Holzapfel, M., Talbayev, D., Mihaly, L., Simon, F., Janossy, A., and Chouteau, G. Spin Excitations in the Antiferromagnet NaNiO2. United States: N. p., 2007. Web. doi:10.1103/PhysRevB.75.094402.
de Brion,S., Darie, C., Holzapfel, M., Talbayev, D., Mihaly, L., Simon, F., Janossy, A., & Chouteau, G. Spin Excitations in the Antiferromagnet NaNiO2. United States. doi:10.1103/PhysRevB.75.094402.
de Brion,S., Darie, C., Holzapfel, M., Talbayev, D., Mihaly, L., Simon, F., Janossy, A., and Chouteau, G. 2007. "Spin Excitations in the Antiferromagnet NaNiO2". United States. doi:10.1103/PhysRevB.75.094402.
@article{osti_930676,
title = {Spin Excitations in the Antiferromagnet NaNiO2},
author = {de Brion,S. and Darie, C. and Holzapfel, M. and Talbayev, D. and Mihaly, L. and Simon, F. and Janossy, A. and Chouteau, G.},
abstractNote = {In NaNiO2 , Ni3+ ions form a quasi-two-dimensional triangular lattice of S=1/2 spins. The magnetic order observed below 20K 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 20cm-1 , in magnetic fields up to 14T . 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},
doi = {10.1103/PhysRevB.75.094402},
journal = {Physical Review B: Condensed Matter and Materials Physics},
number = ,
volume = 75,
place = {United States},
year = 2007,
month = 1
}
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  • No abstract prepared.