Antiferromagnetic square-modulated structure in HoRhSn

Baran S.; Kaczorowski D.; Sheptyakov D.Sikora W.Szytua A.

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Antiferromagnetic square-modulated structure in HoRhSn

机译：Antiferromagnetic square-modulated structure in HoRhSn

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The magnetic ordering of HoRhSn, crystallizing in the hexagonal ZrNiAl-type structure, has been investigated by neutron diffractometry in the temperature range between 1.5 and 15.5 K. The compound has been found to order antiferromagnetically below 6 K with a magnetic structure than can be described by a propagation vector k→=1/3,1/3,1/3. By group-theoretical analysis it has been shown that this structure corresponds to the irreducible representation τ2. The presence of magnetic Bragg reflections originating from 3k→ propagation vector suggests a square-modulation of Ho magnetic moment instead of the most common sine-modulation. The magnetic moments are oriented along the c-axis, and at 1.5 K they are equal to 8.78(20)μ_B.

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《Solid State Communications》 |2010年第30期|1291-1294|共4页
作者
Baran S.; Kaczorowski D.; Sheptyakov D.Sikora W.Szytua A.;
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作者单位

M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, PL-30 059 Kraków, Poland;

Institute of Low Temperature and Structure Research, P. O. Box 1410, PL-50 950 Wroc?aw, Poland;

Laboratory for Neutron Scattering, ETH Zürich, Paul Scherrer Institute, CH-5232 Villigen PSI, SwitzerlandFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland;

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正文语种英语
中图分类固体物理学;
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Magnetically ordered materials; Neutron scattering; Phase transitions;

Antiferromagnetic square-modulated structure in HoRhSn

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