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|Title: ||Frustrated magnetism and local structural disorder in pyrochlore-type Bi1.89Fe1.16Nb0.95O6.95.|
|Authors: ||Miiller, W|
|Keywords: ||Magnetic Properties|
Spin Glass State
|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|
|Appears in Collections:||Journal Articles|
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