Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Effect of interparticle interactions and size dispersion in magnetic nanoparticle assemblies: A static and dynamic study

Authors
Lee, Ji SungTan, Reasmey P.Wu, Jun HuaKim, Young Keun
Issue Date
8-8월-2011
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.99, no.6
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
99
Number
6
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/111804
DOI
10.1063/1.3624833
ISSN
0003-6951
Abstract
Interparticle interactions in magnetic nanoparticles are studied by dc and ac magnetization measurements. For non-interacting nanoparticles, while the anisotropy constant of the nanoparticles K-eff = 1.6 x 10(5) erg/cm(3) is accurately determined by fitting zero-field-cooled and field-cooled measurements, we show that K-eff values deduced only from time relaxation measurements must require simultaneous adjustments of the complex susceptibility by taking into account the size distribution of nanoparticles. This leads to K-eff 1.7 x 10(5) erg/cm(3) in agreement with dc measurements. For interacting nanoparticles, comparisons with theoretical models show that energies due to magnetic dipolar interactions can only be predicted for weak and moderate interactions. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624833]
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kim, Young Keun photo

Kim, Young Keun
공과대학 (신소재공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE