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2008 | 113 | 4 | 1185-1192
Article title

Magnetic Structure of RCuIn (R = Nd, Tb, Ho, Er)

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EN
Abstracts
EN
Magnetic and neutron diffraction measurements of RCuIn (R = Nd, Tb, Ho, Er) are reported. The compounds crystallize in the hexagonal ZrNiAl-type structure. The ZrNiAl lattice originates from a distortion of a kagomélattice. The studied compounds are antiferromagnets with the Néel temperature equal to 4.9 K for R = Nd, 14.5 K for R = Tb, 4.5 K for R = Ho and 3.5 K for R = Er. The magnetic ordering is described by the propagation vectorwe k = (1/2, 1/2, k_z) with k_z equal to 0.161(6) for R = Nd, 0.2213(5) for R = Tb, 0.2510(3) for R = Ho and 0 for R = Er. The magnetic structure is noncollinear with magnetic moments in the basal plane for R = Nd, Tb and Ho and collinear with magnetic moments parallel to the c-axis for R = Er. The observed magnetic ordering results from the competition between exchange interactions of the Ruderman-Kittel-Kasuya-Yosida type, the geometrical frustration of the rare-earth magnetic moments and the influence of the crystal electric field. The latter affects the direction of magnetic moments and is responsible for the magnetic crystalline anisotropy.
Keywords
Year
Volume
113
Issue
4
Pages
1185-1192
Physical description
Dates
published
2008-04
received
2007-06-03
References
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  • 7.Ł. Gondek, A. Szytuła, M. Bałanda, W. Warkocki, A. Szewczyk, M. Gutowska, Solid State Commun. 136, 26 (2005)
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n409kz
Identifiers
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