On the atomic and magnetic ordering of hexagonal NdCuSn

Autor:	E. Gratz, K Yvon, Penelope Schobinger-Papamantellos, J. V. Pacheco
Rok vydání:	1999
Předmět:	Condensed matter physics Magnetic structure Spins Chemistry ddc:500.2 Condensed Matter Physics Crystallography Amplitude Phase (matter) Atom Moment (physics) Antiferromagnetism General Materials Science Stannide
Zdroj:	Journal of Physics. Condensed Matter, Vol. 11, No 21 (1999) pp. 4135-4141
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/11/21/302
Popis:	The magnetic structure of the hexagonal stannide NdCuSn has been studied by neutron powder diffraction at low temperature. Magnetic ordering occurs below ~10 K and is associated with two magnetic wave vectors, q1 = (0,3/8,0) and q2 = (1/2,0,0) or (0,1/2,0). The q1 vector is attributed to a majority fraction (>90%) of the NdCuSn phase having an ordered Cu/Sn sublattice (non-centrosymmetric NdPtSb type structure, space group P63mc). It can be described as originating from a transverse sine wave modulated arrangement of spins oriented || c with a maximum moment value of 2.2 µB/Nd atom, or alternatively by an antiphase domain structure having two amplitudes. The q2 vector is attributed to a minority fraction (
Databáze:	OpenAIRE
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