Browse > Article
http://dx.doi.org/10.4283/JKMS.2016.26.1.013

Magnetic Field Dependence of Brownian Motion in Iron-oxide Nanoparticles  

Jung, Eun Kyung (Department of Physics, Andong National University)
Yoon, Seok Soo (Department of Physics, Andong National University)
Kim, Dong Young (Department of Physics, Andong National University)
Publication Information
Journal of the Korean Magnetics Society / v.26, no.1, 2016 , pp. 13-18 More about this Journal
Abstract
The ac magnetic susceptibility was measured in iron-oxide nanoparticles with average size of 26 nm, which were uniformly dispersed in organic solvent. The ac magnetic susceptibility measured under zero magnetic fields was well fitted with Debye relaxation model and the relaxation frequency was 370 Hz. The relaxation frequency of the nanoparticles coincided with relaxation time of the Brownian motion, which is due to the viscosity of the liquid medium in which magnetic nanoparticles dwell. The Brown relaxation frequencies were linearly increased with magnetic field.
Keywords
nanoparticles; Ac magnetic susceptibility; brownian motion; relaxation frequency;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. Laurent, D. Forge, M. Port, A. Roch, C. Robic, L. V. Elst, and R. N. Muller, Chem. Rev. 108, 2064 (2008).   DOI
2 N. K. Prasad, K. Rathinasamy, D. Panda, and D. Bahadur, J. Biomed. Mater. Part B: Appl. Biomater. 85B, 409 (2007).
3 R. Hergt, S. Dutz, and M. Zeisberger, Nanotechnology 21, 015706 (2010).   DOI
4 I. Hilger, W. Andera, R. Hergt, R. Hiergeist, H. Schubert, and W. A. Kaiser, Radiology 218, 570 (2001).   DOI
5 J. Kliava and R. Berger, J. Magn. Magn. Mater. 205, 328 (1999).   DOI
6 Y. M. Jang and M. J. Hwang, J. Soc. Magn. Reson. Med. 7, 39 (2003).
7 S. Vasseur, E. Duguet, J. Portier, G. Goglio, S. Mornet, E. Hadova, K. Knizek, M. Marysko, P. Veverka, and E. Pollert, J. Magn. Magn. Mater. 302, 315 (2006).   DOI
8 S. N. Ahmad, Y. Akin, and S. A. Shaheen, J. Appl. Phys. 97, 10Q902 (2005).   DOI
9 J. Carrey, B. Mehdaoui, and M. Respaud, J. Appl. Phys. 109, 083921 (2011).   DOI
10 B. H. Erne, M. Claesson, S. Sacanna, M. Klokkenburg, E. Bakelaar, and B. W. M. Kuipers, J. Magn. Magn. Mater. 311, 145 (2007).   DOI
11 R. M. Ferguson, A. P. Khandhar, C. Jonasson, J. Blomgren, C. Johansson, and K. M. Krishnan, IEEE Trans Magn. 49, 3442 (2013).
12 P. C. Fannin, L. C. Tannoudji, E. Bertrand, A. T. Giannitsis, C. M. Oireachtaigh, and J. Bibette, J. Magn. Magn. Mater. 303, 147 (2006).   DOI
13 S. Berkum, J. T. Dee, A. P. Philipse, and Ben H. Erne, Int. J. Mol. Sci. 14, 10162 (2013).   DOI
14 https://en.wikipedia.org/wiki/Dielectric#Debye_relaxation.
15 G. F. Dionne, IEEE Trans. Magn. 39, 3121 (2003).   DOI