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Nanoparticle magnetism

Paper ID Volume ID Publish Year Pages File Format Full-Text
32380 44925 2009 10 PDF Available
Title
Nanoparticle magnetism
Abstract

SummaryThe current status of fundamental physics that govern nanoparticle magnetism is reviewed. Emphasis is placed on studies of the particles’ intrinsic spin structure as influenced by surface and finite-size effects. Theories of dynamic spin fluctuation and spin reversal processes for uniaxial, isolated magnetic nanoparticles are presented, as applied primarily to the interpretation of magnetization and Mössbauer spectroscopic measurements. Monte Carlo simulation studies that corroborate experimental findings and advance elucidation of core vs. surface contributions to magnetic behavior are also presented. In addition, applications to nano and bio technology and future research directions in core/shell, matrix embedded and interacting magnetic nanoparticles are also addressed.

Keywords
Superparamagnetism; Finite-size effects; Surface effects; Intrinsic spin structure; Exchange-bias; Monte Carlo simulations
First Page Preview
Nanoparticle magnetism
Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 4, Issue 5, October 2009, Pages 438–447
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering