Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles
Нема приказа
Аутори
Babić-Stojić, Branka S.Jokanović, Vukoman R.
Milivojević, Dušan
Jagličić, Zvonko
Makovec, Darko
Jović, Nataša G.
Marinović-Cincović, Milena
Чланак у часопису (Објављена верзија)
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We present a study of dynamic magnetic properties of superparamagnetic CoFe2O4 nanoparticles of average size 5.9 nm suspended in an organic liquid. The relaxation times of the particle magnetic moments are found to be strongly dependent on the size of the particles, and also considerably dependent on interparticle interactions. Besides the lower frequency peak, an additional much faster relaxation is observed in the frequency dependence of the imaginary part of the ac magnetic susceptibility below the freezing point of the liquid. It is found that a large contribution to the magnetic relaxation of the lower frequency peak originates from the particles of dimensions 6.3-5.1 nm with interparticle interactions in the range 25-82 K, which correspond to nearer-neighbor particles. Much faster relaxation indicates that its significant part arises from the particles of dimensions 5.8-5.0 nm with interactions in the range 1-52 K which include also more distant neighbors. (C) 2013 AIP Publishing... LLC.
Извор:
Journal of Applied Physics, 2013, 113, 23Финансирање / пројекти:
- Хемијско и структурно дизајнирање наноматеријала за примену у медицини и инжењерству ткива (RS-MESTD-Basic Research (BR or ON)-172026)
DOI: 10.1063/1.4811537
ISSN: 0021-8979
WoS: 000321011700059
Scopus: 2-s2.0-84880801296
Институција/група
VinčaTY - JOUR AU - Babić-Stojić, Branka S. AU - Jokanović, Vukoman R. AU - Milivojević, Dušan AU - Jagličić, Zvonko AU - Makovec, Darko AU - Jović, Nataša G. AU - Marinović-Cincović, Milena PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5563 AB - We present a study of dynamic magnetic properties of superparamagnetic CoFe2O4 nanoparticles of average size 5.9 nm suspended in an organic liquid. The relaxation times of the particle magnetic moments are found to be strongly dependent on the size of the particles, and also considerably dependent on interparticle interactions. Besides the lower frequency peak, an additional much faster relaxation is observed in the frequency dependence of the imaginary part of the ac magnetic susceptibility below the freezing point of the liquid. It is found that a large contribution to the magnetic relaxation of the lower frequency peak originates from the particles of dimensions 6.3-5.1 nm with interparticle interactions in the range 25-82 K, which correspond to nearer-neighbor particles. Much faster relaxation indicates that its significant part arises from the particles of dimensions 5.8-5.0 nm with interactions in the range 1-52 K which include also more distant neighbors. (C) 2013 AIP Publishing LLC. T2 - Journal of Applied Physics T1 - Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles VL - 113 IS - 23 DO - 10.1063/1.4811537 ER -
@article{ author = "Babić-Stojić, Branka S. and Jokanović, Vukoman R. and Milivojević, Dušan and Jagličić, Zvonko and Makovec, Darko and Jović, Nataša G. and Marinović-Cincović, Milena", year = "2013", abstract = "We present a study of dynamic magnetic properties of superparamagnetic CoFe2O4 nanoparticles of average size 5.9 nm suspended in an organic liquid. The relaxation times of the particle magnetic moments are found to be strongly dependent on the size of the particles, and also considerably dependent on interparticle interactions. Besides the lower frequency peak, an additional much faster relaxation is observed in the frequency dependence of the imaginary part of the ac magnetic susceptibility below the freezing point of the liquid. It is found that a large contribution to the magnetic relaxation of the lower frequency peak originates from the particles of dimensions 6.3-5.1 nm with interparticle interactions in the range 25-82 K, which correspond to nearer-neighbor particles. Much faster relaxation indicates that its significant part arises from the particles of dimensions 5.8-5.0 nm with interactions in the range 1-52 K which include also more distant neighbors. (C) 2013 AIP Publishing LLC.", journal = "Journal of Applied Physics", title = "Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles", volume = "113", number = "23", doi = "10.1063/1.4811537" }
Babić-Stojić, B. S., Jokanović, V. R., Milivojević, D., Jagličić, Z., Makovec, D., Jović, N. G.,& Marinović-Cincović, M.. (2013). Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles. in Journal of Applied Physics, 113(23). https://doi.org/10.1063/1.4811537
Babić-Stojić BS, Jokanović VR, Milivojević D, Jagličić Z, Makovec D, Jović NG, Marinović-Cincović M. Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles. in Journal of Applied Physics. 2013;113(23). doi:10.1063/1.4811537 .
Babić-Stojić, Branka S., Jokanović, Vukoman R., Milivojević, Dušan, Jagličić, Zvonko, Makovec, Darko, Jović, Nataša G., Marinović-Cincović, Milena, "Magnetic properties and magnetic relaxation in a suspension of CoFe2O4 nanoparticles" in Journal of Applied Physics, 113, no. 23 (2013), https://doi.org/10.1063/1.4811537 . .