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Title: Specific heat and magnetic structure of GdT2X2 compounds (T=Cu,Ni,X=Sn,Sb)
Authors: Kaczmarska, Krystyna
Pierre, J.
Schmitt, D.
Lambert-Andron, B.
Bellisent, R.
Guzik, Adam
Keywords: magnetic phase; magnetization
Issue Date: 1997
Citation: Acta Physica Polonica. A, Vol. 92, nr 2 (1997), s. 347-350
Abstract: The magnetic specific heat of GdΝi 2 Sn2 , GdΝi2 Sb2 and GdCu2 Sb2 shows a λ-type anomaly at TN with a noticeable reduction of the discontinuity compared to that expected for a simple antiferromagnet. It can be associated with the existence of amplitude modulated magnetic structure just below TN. Above TN a weak magnetic contribution is observed, evidencing the short-range ordering. From neutron diffraction studies it can be also concluded that investigated compounds have not simple antiferromagnetic structures. For GdΝi2Sn2 the propagation vector Q = (0.3, 1/2, 1/2) was found with the magnetic moments along the [1,0,0] axis.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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