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Title: Structure and magnetic properties of K2NiFe3.5v 3.5O16 with the hollandite structure
Authors: Fan, W. 
Ding, J. 
Yi, J.B. 
Rao, G.V.S.
Chowdari, B.V.R. 
Keywords: Hollandite
Magnetic properties
Mössbauer spectroscopy
Issue Date: May-2004
Citation: Fan, W., Ding, J., Yi, J.B., Rao, G.V.S., Chowdari, B.V.R. (2004-05). Structure and magnetic properties of K2NiFe3.5v 3.5O16 with the hollandite structure. Journal of Magnetism and Magnetic Materials 272-276 (SUPPL. 1) : e1801-e1803. ScholarBank@NUS Repository.
Abstract: K2NiFe3.5V3.5O16 with the hollandite structure was prepared by conventional ceramic method. The specimen exhibited the ferrimagnetic behaviour with a relatively high Curie temperature of approximately 870 K and a room temperature saturation magnetization of ∼ 15 emu/g. A maximum of magnetization appeared at 120-150 K and a relatively abrupt decrease in magnetization was detected below 100 K, accompanied by a change of slope in temperature-dependent resistance. The Mössbauer spectra could be well fitted with two sextets in the temperature range of 78-290 K. A change in average hyperfine field and chemical shift was observed below 150 K. © 2003 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
ISSN: 03048853
DOI: 10.1016/j.jmmm.2003.12.864
Appears in Collections:Staff Publications

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