PL EN


Preferences help
enabled [disable] Abstract
Number of results
2010 | 118 | 5 | 1002-1004
Article title

Magnetic Properties of Fe@Pt Nanoparticles with Core/Shell Morphology

Content
Title variants
Languages of publication
EN
Abstracts
EN
We have investigated the magnetic properties of iron nanoparticles coated by platinum shell prepared by chemical procedure. Magnetic measurements using SQUID magnetometer confirm the behaviour typical for a superparamagnetic system. From the M(H) loop at 300 K the magnetic moment of each particle m_{P} ≈ 250 μ_{B} was calculated. The magnetic relaxation study by the in-phase χ' and out-of-phase χ" ac susceptibilities in frequency range 0.1-1000 Hz suggests the existence of two magnetic layers with different magnetic spin's dynamics and strong dipolar interactions between nanoparticles. The observed magnetic behaviour is caused by the blocking process of interacting superparamagnetic particles with magnetic iron core, diamagnetic platinum shell and spin-glass like behaviour magnetic interlayer between them.
Keywords
EN
Year
Volume
118
Issue
5
Pages
1002-1004
Physical description
Dates
published
2010-11
References
  • 1. J.P. Wang, Proc. IEEE 96, 1847 (2008)
  • 2. J.A. Christodoulides, Y. Zhang, G.C. Hadjipanayis, C. Fountzoulas, IEEE Trans. Magn. 36, 2333 (2000)
  • 3. K. Shinoda, K. Sato, B. Jeyadevan, K. Tohji, IEEE Trans. Magn. 42, 3051 (2006)
  • 4. K. Sibnath, R.R. Vijayaraghavan, J. Nanosci. Nanotechnol. 10, 5527 (2010)
  • 5. M. Delalande, P.R. Marcoux, P. Reiss, Y. Samson, J. Mater. Chem. 17, 1579 (2007)
  • 6. A. Zelenakova, J. Kovac, V. Zelenak, J. Appl. Phys. 108, 034323 (2010)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5118kz
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.