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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/2926

Title: Frustrated magnetism and local structural disorder in pyrochlore-type Bi1.89Fe1.16Nb0.95O6.95.
Authors: Miiller, W
Causeret, L
Ling, CD
Keywords: Magnetic Properties
Pyrochlore
Spin Glass State
Monocrystals
Zone Melting
Neutron Diffraction
Issue Date: 8-Dec-2010
Publisher: Institute of Physics
Citation: Miiller, W., Causeret, L., & Ling, C. D. (2010). Frustrated magnetism and local structural disorder in pyrochlore-type Bi1.89Fe1.16Nb0.95O6.95. Journal of Physics-Condensed Matter, 22(48), 486004.
Abstract: The magnetic properties of pyrochlore-type Bi1.89Fe1.16Nb0.95O6.95 have been investigated for the first time using AC and DC susceptibility. The compound is shown to behave as a classical spin glass due to strong competition/coexistence of ferro- and antiferromagnetic exchange. The study was accompanied by the first-ever growth of single crystals of this compound using the floating-zone method, allowing us to carry out a single-crystal neutron diffraction experiment that confirmed and extended our understanding of local structural disorder, driven by the stereochemically active 6s2 electron lone pair on Bi3 + ions. The magnetic properties are discussed in terms of both the topologically frustrated Fe3 + lattice and the role of this local structural disorder. © 2010, Institute of Physics
URI: http://dx.doi.org/10.1088/0953-8984/22/48/486004
http://apo.ansto.gov.au/dspace/handle/10238/2926
ISSN: 0953-8984
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