DocumentCode :
40097
Title :
Magnetic and Mössbauer Studies of Mn 
Zn 
Ti
Author :
Haining Ji ; Zhongwen Lan ; Zhiyong Xu ; Huaiwu Zhang ; Salamo, G.J.
Author_Institution :
State key Lab. of Electron. Thin Film & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume :
49
Issue :
7
fYear :
2013
fDate :
Jul-13
Firstpage :
4277
Lastpage :
4280
Abstract :
MnZn ferrites substituted with titanium having the compositional formula of Mn0.679-xZn0.258TixFe2.066O4 (x = 0, 0.010, 0.020, 0.030) were prepared via a conventional ceramic process. The effect of titanium concentration on magnetic properties such as permeability, power loss, and Curie temperature were investigated. Moreover, Mössbauer spectra was recorded at room temperature. The cation distribution obtained from analysis of Mössbauer spectra revealed that the substitution of MnZn ferrites by titanium can move part of Fe3+ from octahedral (B) site to tetrahedral (A) site. Remarkably, this resulted in an increase in the amount of Fe2+A-Fe3+B ion pairs and the Curie temperature. The results obtained and mechanisms involved are discussed.
Keywords :
Curie temperature; Mossbauer effect; chemical exchanges; exchange interactions (electron); ferrites; iron alloys; magnetic permeability; manganese alloys; materials preparation; titanium alloys; zinc alloys; Curie temperature; Fe2+A-Fe3+B ion pair amount; Mn0.679-xZn0.258TixFe2.066O4; MnZn ferrite substitution; MnZn ferrites; Mossbauer spectra; cation distribution effect; conventional ceramic process; magnetic properties; octahedral (B) site; permeability; power loss; spinel; temperature 293 K to 298 K; tetrahedral (A) site; titanium concentration effect; Ferrites; Iron; Manganese; Permeability; Temperature; Titanium; Zinc; Cation distribution; Mössbauer spectroscopy; ferrites; titanium;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2013.2238901
Filename :
6559093
Link To Document :
