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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/49394

Title: Bi-substitution-induced magnetic moment distribution in spinel BixCo2-xMnO4 multiferroic
Author: SHVETS, IGOR
Sponsor: Science Foundation Ireland
Author's Homepage: http://people.tcd.ie/ivchvets
Keywords: TRANSITION-METAL COMPOUNDS
Spectra
X-Ray absorption
colossal magnetoresistance
oxides
Issue Date: 2009
Publisher: Institute of Physics
Citation: N. E. Rajeevan, R. Kumar, D. K. Shukla, P. Thakur, N. B. Brookes, K. H. Chae, W. K. Choi, S. Gautam, S. K. Arora, I. V. Shvets, P. P. Pradyumnan, Bi-substitution-induced magnetic moment distribution in spinel BixCo2-xMnO4 multiferroic, Journal of Physics Condensed Matter, 21, 40, 2009, 406006-
Series/Report no.: Journal of Physics Condensed Matter;
21;
40;
Abstract: We report the near-edge x-ray absorption spectroscopy (NEXAFS) at the Co/Mn L3,2 edge and oxygen K edge of the well-characterized Bi-substituted Co2MnO4 multiferroic samples. The evolution of peak features in NEXAFS spectra of the Co/Mn L3,2 edge and O K edge show the Bi-induced redistribution of magnetic cations (Co/Mn). The variation in valence states of Co and Mn in all the substituted compositions is consistent with the observed ferrimagnetic behaviour of the samples. Magnetization data show the decrease in molecular f eld complementing the ferrimagnetism. The role of Bi in the enhancement of magnetic interactions as well as the appearance of ferroelectricity in Bix Co2−x MnO4 (0 x 0.3) is discussed.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/49394
Related links: http://dx.doi.org/10.1088/0953-8984/21/40/406006
Appears in Collections:Physics (Scholarly Publications)

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