Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method
Нема приказа
Аутори
Jović, Nataša G.Jokanović, Vukoman R.
Jagličić, Zvonko
Branković, Dušan
Milosavljević, Momir
Makovec, Darko
Babić-Stojić, Branka S.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
Nanocomposite made of 10 wt% of Co2.4Al0.6O4 particles dispersed in an amorphous SiO2 matrix has been synthesized by a solgel method. X-ray diffraction, transmission electron microscopy and magnetic measurements have been used to characterize the properties of nanocomposite. Most of the particles are well crystallized and have an average diameter below 100 nm. Smaller particles with size below 10 nm have also been observed. A large value of the effective magnetic moment per Co2+ ion of 5.08 mu B and negative and the low CurieWeiss paramagnetic temperature Theta similar to -6 K, obtained from the high-temperature susceptibility data, indicate a possible mixing of Co2+ and Co3+ ions between tetrahedral and octahedral sites of the spinel crystal lattice. The measurements of static and dynamic magnetic susceptibilities have shown that Co2.4Al0.6O4 particles in SiO2 matrix display a spin glass behavior at low temperatures. (C) 2010 Elsevier B.V. All rights reserved.
Кључне речи:
Sol-gel / Nanocomposite / Spinel compound / Spin-glassИзвор:
Journal of Magnetism and Magnetic Materials, 2010, 322, 21, 3271-3277Финансирање / пројекти:
- Ministry of Science and Technological Development of the Republic of Serbia
DOI: 10.1016/j.jmmm.2010.06.006
ISSN: 0304-8853
WoS: 000281061400010
Scopus: 2-s2.0-77955579936
Колекције
Институција/група
VinčaTY - JOUR AU - Jović, Nataša G. AU - Jokanović, Vukoman R. AU - Jagličić, Zvonko AU - Branković, Dušan AU - Milosavljević, Momir AU - Makovec, Darko AU - Babić-Stojić, Branka S. PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4081 AB - Nanocomposite made of 10 wt% of Co2.4Al0.6O4 particles dispersed in an amorphous SiO2 matrix has been synthesized by a solgel method. X-ray diffraction, transmission electron microscopy and magnetic measurements have been used to characterize the properties of nanocomposite. Most of the particles are well crystallized and have an average diameter below 100 nm. Smaller particles with size below 10 nm have also been observed. A large value of the effective magnetic moment per Co2+ ion of 5.08 mu B and negative and the low CurieWeiss paramagnetic temperature Theta similar to -6 K, obtained from the high-temperature susceptibility data, indicate a possible mixing of Co2+ and Co3+ ions between tetrahedral and octahedral sites of the spinel crystal lattice. The measurements of static and dynamic magnetic susceptibilities have shown that Co2.4Al0.6O4 particles in SiO2 matrix display a spin glass behavior at low temperatures. (C) 2010 Elsevier B.V. All rights reserved. T2 - Journal of Magnetism and Magnetic Materials T1 - Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method VL - 322 IS - 21 SP - 3271 EP - 3277 DO - 10.1016/j.jmmm.2010.06.006 ER -
@article{ author = "Jović, Nataša G. and Jokanović, Vukoman R. and Jagličić, Zvonko and Branković, Dušan and Milosavljević, Momir and Makovec, Darko and Babić-Stojić, Branka S.", year = "2010", abstract = "Nanocomposite made of 10 wt% of Co2.4Al0.6O4 particles dispersed in an amorphous SiO2 matrix has been synthesized by a solgel method. X-ray diffraction, transmission electron microscopy and magnetic measurements have been used to characterize the properties of nanocomposite. Most of the particles are well crystallized and have an average diameter below 100 nm. Smaller particles with size below 10 nm have also been observed. A large value of the effective magnetic moment per Co2+ ion of 5.08 mu B and negative and the low CurieWeiss paramagnetic temperature Theta similar to -6 K, obtained from the high-temperature susceptibility data, indicate a possible mixing of Co2+ and Co3+ ions between tetrahedral and octahedral sites of the spinel crystal lattice. The measurements of static and dynamic magnetic susceptibilities have shown that Co2.4Al0.6O4 particles in SiO2 matrix display a spin glass behavior at low temperatures. (C) 2010 Elsevier B.V. All rights reserved.", journal = "Journal of Magnetism and Magnetic Materials", title = "Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method", volume = "322", number = "21", pages = "3271-3277", doi = "10.1016/j.jmmm.2010.06.006" }
Jović, N. G., Jokanović, V. R., Jagličić, Z., Branković, D., Milosavljević, M., Makovec, D.,& Babić-Stojić, B. S.. (2010). Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method. in Journal of Magnetism and Magnetic Materials, 322(21), 3271-3277. https://doi.org/10.1016/j.jmmm.2010.06.006
Jović NG, Jokanović VR, Jagličić Z, Branković D, Milosavljević M, Makovec D, Babić-Stojić BS. Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method. in Journal of Magnetism and Magnetic Materials. 2010;322(21):3271-3277. doi:10.1016/j.jmmm.2010.06.006 .
Jović, Nataša G., Jokanović, Vukoman R., Jagličić, Zvonko, Branković, Dušan, Milosavljević, Momir, Makovec, Darko, Babić-Stojić, Branka S., "Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method" in Journal of Magnetism and Magnetic Materials, 322, no. 21 (2010):3271-3277, https://doi.org/10.1016/j.jmmm.2010.06.006 . .