Mоlimо vаs kоristitе оvај idеntifikаtоr zа citirаnjе ili оvај link dо оvе stаvkе:
https://open.uns.ac.rs/handle/123456789/15726
Nаziv: | Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes | Аutоri: | Vučinić-Vasić, Milica Antić, Boris Kremenović A. Nikolic A. Stoiljkovic M. Bibic N. Spasojevic V. Colomban P. |
Dаtum izdаvаnjа: | 14-окт-2006 | Čаsоpis: | Nanotechnology | Sažetak: | The results on the synthesis, microstructure, structure and DC magnetization studies of nanocomposite Zn,Ni ferrite/NiO powder obtained by thermal decomposition of acetylacetonato complexes are reported in this paper. According to the results obtained by inductively coupled plasma optical emission spectroscopy (ICP-OES) element analysis and multiphase Rietveld refinement, the three samples made are composed of spinel-ferrite (86.7%-96.7%) and NiO (3.3%-13.3%) phases. The compositions of the spinel-ferrite (SP) phase in the investigated samples, S1-S3, are Zn 0.72 Ni 0.24 Fe 1.98 O 4 , Zn 0.56 Ni 0.29 Fe 2.07 O 4 and Zn 0.40 Ni 0.40 Fe 2.10 O 4 , respectively. Due to the cation deficiency in spinels, created vacancies induce a partial change in the cation valence, . The vacancy distribution is found to be random at 8a and 16d cation sites, except in sample S3, where all vacancies are over octahedral sites. The x-ray line broadening due to crystallite size effect is found to be isotropic for all spinels, while the x-ray line broadening due to the strain effect is anisotropic. A correlation between the Zn 2+ occupancy of the tetrahedral site and the 650 cm -1 Raman peak intensities is shown. The observed coercivity decrease and shift in hysteresis loop in the samples are caused by the interaction between spinel and NiO phase. The results of M(H) measurements point to the properties of an ensemble of interacting nanoparticles. High saturation magnetization values and superparamagnetic behaviour at room temperature point to the technological significance of the title compounds. © IOP Publishing Ltd. | URI: | https://open.uns.ac.rs/handle/123456789/15726 | ISSN: | 9574484 | DOI: | 10.1088/0957-4484/17/19/017 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
Prikаzаti cеlоkupаn zаpis stаvki
SCOPUSTM
Nаvоđеnjа
38
prоvеrеnо 09.09.2023.
Prеglеd/i stаnicа
47
Prоtеklа nеdеljа
13
13
Prоtеkli mеsеc
0
0
prоvеrеnо 10.05.2024.
Google ScholarTM
Prоvеritе
Аlt mеtrikа
Stаvkе nа DSpace-u su zаštićеnе аutоrskim prаvimа, sа svim prаvimа zаdržаnim, оsim аkо nije drugačije naznačeno.