Reference : Structural and magnetic properties of Pr18Li8Fe5-xMxO39 (M = Ru, Mn, Co)
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/17434
Structural and magnetic properties of Pr18Li8Fe5-xMxO39 (M = Ru, Mn, Co)
English
Dutton, Sian E [> > > >]
Battle, Peter D [> > > >]
Grandjean, Fernande mailto [Université de Liège - ULg > Département de physique > Département de physique >]
Long, Gary J [> > > >]
Sougrati, Moulay Tahar mailto [Université de Liège - ULg > Département de physique > Département de physique >]
van Daesdonk, Peter A [> > > >]
Winstone, Emma [> > > >]
2009
Journal of Solid State Chemistry
Academic Press
182
7
1638-1648
Yes (verified by ORBi)
International
0022-4596
San Diego
CA
[en] Mixed-metal oxide ; Magnetism ; Neutron diffraction ; Mossbauer spectroscopy
[en] A polycrystalline sample of Pr18Li8Fe4RuO39 has been synthesized by a solid state method and characterized by neutron powder diffraction, magnetometry and Mossbauer spectroscopy; samples of Pr18Li8Fe5-xMxO39 and Pr18Li8Fe5-xCoxO39 (x = 1, 2) have been studied by magnetometry. All these Compounds adopt a cubic structure (space group Pm (3) over barn, a(o)similar to 11.97 angstrom) based on intersecting < 111 > chains made up of alternating octahedral and trigonal-prismatic coordination sites. These chains occupy channels within a Pr-O framework. The trigonal-prismatic site in Pr18Li8Fe4RuO39 is occupied by Li+ and high-spin Fe3+. The remaining transition-metal cations occupy the two crystallographically-distinct octahedral sites in a disordered manner. All five compositions adopt a spin-glass-like state at 7 K (Pr18Li8Fe4RuO39) or below. (C) 2009 Elsevier Inc. All rights reserved.
http://hdl.handle.net/2268/17434
10.1016/j.jssc.2009.04.002

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