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Title: Magnetic study of M-type Ru–Ti doped strontium hexaferrite nanocrystalline particles

Abstract

We carried out a systematic study on the effect of the substitution of Ti2+ and Ru4+ ions for Fe3+ ions on the structural and magnetic properties of the strontium ferrite SrFe12-2xRuxTixO19 nanoparticles with (0 <= x <= 0: 3), using x-ray diffraction, Quantum Design PPMS-9 magnetometry, and electrical resistivity. A clear irreversibility between the zero-field-cooled and field-cooled curves was observed below room temperature and the zero-field-cooled magnetization curves displayed a broad peak at a temperature TM. These results were discussed within the framework of random particle assembly model and associated with the magnetic domain wall motion. The resistivity data showed some kind of a transition from insulator to perfect insulator around TM. The high-temperature magnetization measurements exhibited sharp peaks just below T-c indicating a superparamagnetic behavior. With Ru-Ti substitution, the saturation magnetization at 5 K showed small variations were it slightly increased with increasing x up to 0.2, and then decrease for x = 0.3, while the coercivity decreased monotonically, recording a reduction of about 78% at x = 0.3. These results were discussed in light of the cationic distributions based on the results of the structural refinements.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division
OSTI Identifier:
1352868
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 648; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

Citation Formats

Alsmadi, A. M., Bsoul, I., Mahmood, S. H., Alnawashi, G., Al-Dweri, F. M., Maswadeh, Y., and Welp, U. Magnetic study of M-type Ru–Ti doped strontium hexaferrite nanocrystalline particles. United States: N. p., 2015. Web. doi:10.1016/j.jallcom.2015.06.274.
Alsmadi, A. M., Bsoul, I., Mahmood, S. H., Alnawashi, G., Al-Dweri, F. M., Maswadeh, Y., & Welp, U. Magnetic study of M-type Ru–Ti doped strontium hexaferrite nanocrystalline particles. United States. doi:10.1016/j.jallcom.2015.06.274.
Alsmadi, A. M., Bsoul, I., Mahmood, S. H., Alnawashi, G., Al-Dweri, F. M., Maswadeh, Y., and Welp, U. Sun . "Magnetic study of M-type Ru–Ti doped strontium hexaferrite nanocrystalline particles". United States. doi:10.1016/j.jallcom.2015.06.274.
@article{osti_1352868,
title = {Magnetic study of M-type Ru–Ti doped strontium hexaferrite nanocrystalline particles},
author = {Alsmadi, A. M. and Bsoul, I. and Mahmood, S. H. and Alnawashi, G. and Al-Dweri, F. M. and Maswadeh, Y. and Welp, U.},
abstractNote = {We carried out a systematic study on the effect of the substitution of Ti2+ and Ru4+ ions for Fe3+ ions on the structural and magnetic properties of the strontium ferrite SrFe12-2xRuxTixO19 nanoparticles with (0 <= x <= 0: 3), using x-ray diffraction, Quantum Design PPMS-9 magnetometry, and electrical resistivity. A clear irreversibility between the zero-field-cooled and field-cooled curves was observed below room temperature and the zero-field-cooled magnetization curves displayed a broad peak at a temperature TM. These results were discussed within the framework of random particle assembly model and associated with the magnetic domain wall motion. The resistivity data showed some kind of a transition from insulator to perfect insulator around TM. The high-temperature magnetization measurements exhibited sharp peaks just below T-c indicating a superparamagnetic behavior. With Ru-Ti substitution, the saturation magnetization at 5 K showed small variations were it slightly increased with increasing x up to 0.2, and then decrease for x = 0.3, while the coercivity decreased monotonically, recording a reduction of about 78% at x = 0.3. These results were discussed in light of the cationic distributions based on the results of the structural refinements.},
doi = {10.1016/j.jallcom.2015.06.274},
journal = {Journal of Alloys and Compounds},
issn = {0925-8388},
number = ,
volume = 648,
place = {United States},
year = {2015},
month = {11}
}