UNSPECIFIED (1999) Neutron polarisation analysis of the magnetic ordering of the quasi-two-dimensional honeycomb network d(20)-(P(C6D5)(4)) (FeFeIII)-Fe-II(C2O4)(3). In: 2nd Workshop on Polarised Neutrons for Condensed Matter Investigations (PNCMI'98), SEP 21-23, 1998, INST LAUE LANGEVIN, CHADWICK AMPHITHEATER, GRENOBLE, FRANCE.

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Abstract

The crystal structure of AM(II)M(III)(oxalate)(3) class of materials, with M being a transition metal ion, shows an alternating order of the M-II and M-III magnetic ions on a honeycomb lattice. In (P(C6D5)(4))FeFe(ox)(3) no long-range magnetic order has been observed but instead a diffuse magnetic component is present below 35 It. XYZ neutron spin polarisation analysis has been used to separate the magnetic scattering from the nuclear-coherent and spin-incoherent contribution. The magnetic elastic as well as the quasi-elastic magnetic scattering profile can be obtained unambigiously. In (P(C6D5)(4))FeFe(ox)(3) no long-range magnetic order exists, due to the random anisotropy effects introduced by the different electronic configurations of the Fe2+ and Fe3+ ions. A comparison with the long-range magnetic ordering observed in (P(C6D5)(4))MnFe(ox)(3) is made. (C) 1999 Elsevier Science B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QC Physics
Journal or Publication Title:	PHYSICA B-CONDENSED MATTER
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0921-4526
Date:	June 1999
Volume:	267
Number of Pages:	4
Page Range:	pp. 266-269
Publication Status:	Published
Title of Event:	2nd Workshop on Polarised Neutrons for Condensed Matter Investigations (PNCMI'98)
Location of Event:	INST LAUE LANGEVIN, CHADWICK AMPHITHEATER, GRENOBLE, FRANCE
Date(s) of Event:	SEP 21-23, 1998
URI:	http://wrap.warwick.ac.uk/id/eprint/14572

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