TY - JOUR
T1 - Mössbauer and magnetic study of Mn, Zr and Cd substituted W-type hexaferrites prepared by co-precipitation
AU - Iqbal, Muhammad Javed
AU - Khan, Rafaqat Ali
AU - Mizukami, Shigemi
AU - Miyazaki, Terunobu
N1 - Funding Information:
Higher Education Commission (HEC) of Pakistan has supported this work under Indigenous Ph.D 5000 fellowship program Phase III.
PY - 2011/11
Y1 - 2011/11
N2 - BaCo2-xMnxFe16-2y(Zr-Cd)yO 27 (x = 0-0.5 and y = 0-1.0) hexaferrite nanocrystallites of average sizes in the range of 33-42 nm are synthesized by the chemical co-precipitation method. The synthesized materials are characterized using different techniques including X-ray diffraction (XRD), energy dispersive X-ray florescence (ED-XRF), scanning electron microscope (SEM), Mössbauer spectrometer and vibrating-sample magnetometer (VSM). Based on analysis of the data obtained from Mössbauer spectral studies, doping is believed to have occurred preferably in the vicinity of 12k sub-lattice, i.e. fIV (4e, 4fIV), 2b (6g, 4f) and 2d site. Variations in the saturation magnetization (77.1-60.9 emu g-1), remanent magnetization (22.08-31.23 emu g-1) and coercivity (1570.1-674.7 Oe) exhibit tunable behavior with dopant content and therefore can be useful for application in various magnetic devices.
AB - BaCo2-xMnxFe16-2y(Zr-Cd)yO 27 (x = 0-0.5 and y = 0-1.0) hexaferrite nanocrystallites of average sizes in the range of 33-42 nm are synthesized by the chemical co-precipitation method. The synthesized materials are characterized using different techniques including X-ray diffraction (XRD), energy dispersive X-ray florescence (ED-XRF), scanning electron microscope (SEM), Mössbauer spectrometer and vibrating-sample magnetometer (VSM). Based on analysis of the data obtained from Mössbauer spectral studies, doping is believed to have occurred preferably in the vicinity of 12k sub-lattice, i.e. fIV (4e, 4fIV), 2b (6g, 4f) and 2d site. Variations in the saturation magnetization (77.1-60.9 emu g-1), remanent magnetization (22.08-31.23 emu g-1) and coercivity (1570.1-674.7 Oe) exhibit tunable behavior with dopant content and therefore can be useful for application in various magnetic devices.
KW - A. Magnetic materials
KW - B. Chemical synthesis
KW - C. Mössbauer Spectroscopy
KW - C. X-ray diffraction
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U2 - 10.1016/j.materresbull.2011.07.014
DO - 10.1016/j.materresbull.2011.07.014
M3 - Article
AN - SCOPUS:80052846673
SN - 0025-5408
VL - 46
SP - 1980
EP - 1986
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 11
ER -