Thermal neutron diffraction determination of the magnetic structure of EuCu2Ge2

The magnetic structure of EuCu2Ge2 has been determined by flat-plate neutron powder diffraction. Two magnetic phases are present in the neutron diffraction pattern at 3.5 K. They have the same moment, within error, and a common transition temperature. Both 151Eu and 153Eu Mössbauer spectroscopy show...

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Bibliographic Details
Published in:Journal of applied physics 2014-05, Vol.115 (17)
Main Authors: Rowan-Weetaluktuk, W. N., Ryan, D. H., Lemoine, P., Cadogan, J. M.
Format: Article
Language:English
Subjects:
Crystallography
Crystals
Diffraction patterns
Magnetic structure
Mossbauer spectroscopy
Neutron diffraction
Neutrons
Phases
Plates (structural members)
Propagation
Thermal neutrons
Transition temperature
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Summary:The magnetic structure of EuCu2Ge2 has been determined by flat-plate neutron powder diffraction. Two magnetic phases are present in the neutron diffraction pattern at 3.5 K. They have the same moment, within error, and a common transition temperature. Both 151Eu and 153Eu Mössbauer spectroscopy show that the two magnetic phases belong to the same crystallographic phase. Both phases can be modelled by planar helimagnetic structures: one with a propagation vector of [0.654(1), 0, 0], the other with a propagation vector of [0.410(1), 0.225(1), 0].
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4853095