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The Collinear Magnetic Phases of the Geometrically-Frustrated Antiferromagnet CuFeO$_2$: The Importance of Stacking

Authors :
Fishman, R. S.
Ye, F.
Fernandez-Baca, J. A.
Haraldsen, J. T.
Kimura, T.
Source :
Phys. Rev. B 78, 140407(R) (2008)
Publication Year :
2008

Abstract

The correct stacking of hexagonal layers is used to obtain accurate estimates for the exchange and anisotropy parameters of the geometrically-frustrated antiferromagnet CuFeO$_2$. Those parameters are highly constrained by the stability of a collinear metamagnetic phase between fields of 13.5 and 20 T. Constrained fits of the spin-wave frequencies of the collinear $\uudd $ phase below 7 T are used to identify the magnetic unit cell of the metamagnetic $\uuudd $ phase, which contains two hexagonal layers and 10 Fe$^{3+}$ spins.<br />Comment: 3 Figures

Details

Database :
arXiv
Journal :
Phys. Rev. B 78, 140407(R) (2008)
Publication Type :
Report
Accession number :
edsarx.0807.3948
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevB.78.140407