Zinātniskās darbības atbalsta sistēma
Latviešu English

Publikācija: Effect of Antisite Defects on the Magnetic Properties of ZnFe2O4

Publikācijas veids Zinātniskais raksts, kas indeksēts Web of science un/vai Scopus datu bāzē
Pamatdarbībai piesaistītais finansējums Nav zināms
Aizstāvēšana: ,
Publikācijas valoda English (en)
Nosaukums oriģinālvalodā Effect of Antisite Defects on the Magnetic Properties of ZnFe2O4
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.5. Materiālzinātne
Autori Andris Šutka
Rainer Pärna
Māris Zamovskis
Vambola Kisand
Gundars Mežinskis
Jānis Kleperis
Mihael Maiorov
Dmitrijs Jakovļevs
Atslēgas vārdi magnetic properties, nanoparticles, sol–gel autocombustion, zinc ferrite
Anotācija Magnetic zinc ferrite (ZnFe2O4) nanopowders were synthesized using the sol–gel autocombustion method. X-ray diffraction (XRD) and scanning electron microscopy (SEM) measurements demonstrated that thermal decomposition of the 1-mm-thick xerogel layers in air formed monophasic spinel ferrite nanopowders with a particle size less than 30 nm. X-ray photoelectron spectroscopy (XPS) showed that the obtained reaction product contained antisite defects, with zinc ions occurring at the octahedral sites of the spinel structure. The concentration of antisite defects or inversion degree decreased when the relatively low annealing temperature was increased from 150 to 500 8C. Overall, the obtained ZnFe2O4, which is usually antiferromagnetic (exhibits no magnetic moment), demonstrated high saturation magnetization (60.7 emu g1), and coercive force (56 Oe). This was due to the presence of the antisite defects in the structure.
DOI: 10.1002/pssa.201329039
Hipersaite: http://onlinelibrary.wiley.com/doi/10.1002/pssa.201329039/abstract 
Atsauce Šutka, A., Pärna, R., Zamovskis, M., Kisand, V., Mežinskis, G., Kleperis, J., Maiorov, M., Jakovļevs, D. Effect of Antisite Defects on the Magnetic Properties of ZnFe2O4. Physica Status Solidi A, 2013, Vol.210, Iss.9, 1892.-1897.lpp. e-ISSN 1862-6319. Pieejams: doi:10.1002/pssa.201329039
Papildinformācija Citējamību skaits:
ID 19734