Nanoscale magnetic configurations of supported Fe nanoparticle assemblies studied by scanning electron microscopy with spin analysis

Wen Chin Lin, Zheng Gai, Lan Gao, Jian Shen, Pin Jui Hsu, Hong Yu Yen, Minn Tsong Lin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Microscopic magnetic behavior of supported nanoparticles is strongly correlated with their functionalities, especially in data storage and biological applications, but still needs to be clarified. We studied nanoscale magnetic configurations of Fe nanoparticle assemblies using scanning electron microscopy with polarization analysis. The flux closure domain configurations and the reduced magnetic correlation length (∼250nm), relative to the conventional thin films, are determined. Quantitative analysis indicates the magnetic interaction energy to be 80-99 meV, close to the magnetic dipolar coupling energy. These direct observations evidence the aforereported simulations and will be valuable for fabricating magnetic nanoparticle assemblies with the desired magnetic properties.

Original languageEnglish
Article number024407
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number2
DOIs
Publication statusPublished - 2009 Aug 6

Fingerprint

assemblies
Nanoparticles
nanoparticles
Scanning electron microscopy
scanning electron microscopy
configurations
Magnetic couplings
data storage
quantitative analysis
closures
Magnetic properties
Polarization
Fluxes
magnetic properties
Data storage equipment
Thin films
energy
polarization
thin films
Chemical analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nanoscale magnetic configurations of supported Fe nanoparticle assemblies studied by scanning electron microscopy with spin analysis. / Lin, Wen Chin; Gai, Zheng; Gao, Lan; Shen, Jian; Hsu, Pin Jui; Yen, Hong Yu; Lin, Minn Tsong.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 2, 024407, 06.08.2009.

Research output: Contribution to journalArticle

@article{e2de56099327466f9a387c342f28a6af,
title = "Nanoscale magnetic configurations of supported Fe nanoparticle assemblies studied by scanning electron microscopy with spin analysis",
abstract = "Microscopic magnetic behavior of supported nanoparticles is strongly correlated with their functionalities, especially in data storage and biological applications, but still needs to be clarified. We studied nanoscale magnetic configurations of Fe nanoparticle assemblies using scanning electron microscopy with polarization analysis. The flux closure domain configurations and the reduced magnetic correlation length (∼250nm), relative to the conventional thin films, are determined. Quantitative analysis indicates the magnetic interaction energy to be 80-99 meV, close to the magnetic dipolar coupling energy. These direct observations evidence the aforereported simulations and will be valuable for fabricating magnetic nanoparticle assemblies with the desired magnetic properties.",
author = "Lin, {Wen Chin} and Zheng Gai and Lan Gao and Jian Shen and Hsu, {Pin Jui} and Yen, {Hong Yu} and Lin, {Minn Tsong}",
year = "2009",
month = "8",
day = "6",
doi = "10.1103/PhysRevB.80.024407",
language = "English",
volume = "80",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
number = "2",

}

TY - JOUR

T1 - Nanoscale magnetic configurations of supported Fe nanoparticle assemblies studied by scanning electron microscopy with spin analysis

AU - Lin, Wen Chin

AU - Gai, Zheng

AU - Gao, Lan

AU - Shen, Jian

AU - Hsu, Pin Jui

AU - Yen, Hong Yu

AU - Lin, Minn Tsong

PY - 2009/8/6

Y1 - 2009/8/6

N2 - Microscopic magnetic behavior of supported nanoparticles is strongly correlated with their functionalities, especially in data storage and biological applications, but still needs to be clarified. We studied nanoscale magnetic configurations of Fe nanoparticle assemblies using scanning electron microscopy with polarization analysis. The flux closure domain configurations and the reduced magnetic correlation length (∼250nm), relative to the conventional thin films, are determined. Quantitative analysis indicates the magnetic interaction energy to be 80-99 meV, close to the magnetic dipolar coupling energy. These direct observations evidence the aforereported simulations and will be valuable for fabricating magnetic nanoparticle assemblies with the desired magnetic properties.

AB - Microscopic magnetic behavior of supported nanoparticles is strongly correlated with their functionalities, especially in data storage and biological applications, but still needs to be clarified. We studied nanoscale magnetic configurations of Fe nanoparticle assemblies using scanning electron microscopy with polarization analysis. The flux closure domain configurations and the reduced magnetic correlation length (∼250nm), relative to the conventional thin films, are determined. Quantitative analysis indicates the magnetic interaction energy to be 80-99 meV, close to the magnetic dipolar coupling energy. These direct observations evidence the aforereported simulations and will be valuable for fabricating magnetic nanoparticle assemblies with the desired magnetic properties.

UR - http://www.scopus.com/inward/record.url?scp=68949121214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68949121214&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.80.024407

DO - 10.1103/PhysRevB.80.024407

M3 - Article

AN - SCOPUS:68949121214

VL - 80

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1098-0121

IS - 2

M1 - 024407

ER -