期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 218, 期 2-3, 页码 261-265出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0304-8853(00)00395-4
关键词
spin arrangements; antiferromagnetics
The antiferromagnetic structure of FeNbO4 was determined by neutron powder diffraction. The magnetic unit cell is doubled with respect to the crystallographic one, k = (1/2 0 0), and the magnetic moments are collinear aligned in the ac-plane with an angle phi a = 75(15)degrees to the a-axis. The Neel temperature of T-N = 38.5(5)K and the extrapolated zero-temperature moment of 1.90(5)mu(B) per Fe-site are fitted to the temperature dependence of the sublattice magnetisation. (C) 2000 Elsevier Science B.V. All rights reserved.
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