Magnetic and crystal structures of iron borates

The crystal and magnetic structures of Fe III Fe II ( BO 3) O, Fe III Fe II 2( BO 3) O 2, and Fe III Ni II 2( BO 3 O 2 have been investigated by low temperature powder neutron diffraction. Fe 2 BO 4 is an antiferromagnet below T N = 145 ± 15 K and contains ferromagnetically ordered, alternating Fe 2...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 1992-06, Vol.180, p.581-584
Main Authors: Paul Attfield, J., Clarke, John F., Perkins, David A.
Format: Article
Language:English
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Summary:The crystal and magnetic structures of Fe III Fe II ( BO 3) O, Fe III Fe II 2( BO 3) O 2, and Fe III Ni II 2( BO 3 O 2 have been investigated by low temperature powder neutron diffraction. Fe 2 BO 4 is an antiferromagnet below T N = 145 ± 15 K and contains ferromagnetically ordered, alternating Fe 2+ and Fe 3+ spins within infinite chains of edge-sharing FeO 6 octahedra, whereas Fe 3 BO 5 orders ferrimagnetically with both antiferro- and ferromagnetically ordering in the chains.
ISSN:0921-4526
DOI:10.1016/0921-4526(92)90401-D