Tailoring magnetic properties of core/shell nanoparticles

Hao Zeng; Shouheng Sun; J. Li; Z. L. Wang; J. P. Liu

doi:10.1063/1.1776632

Tailoring magnetic properties of core/shell nanoparticles

Hao Zeng
, Shouheng Sun
, J. Li
, Z. L. Wang
, J. P. Liu

Physics

IBM
Georgia Institute of Technology
University of Texas at Arlington

Research output: Contribution to journal › Article › peer-review

209 Scopus citations

Abstract

The magnetic properties of a bimagnetic core/shell nanoparticle system with ferromagnetic FePt core and thickness-tunable, ferrimagnetic MFe ₂O ₄ shell were described. A single-phase-like smooth variation of magnetization with field, indicating that the core and the shell were effectively exchange coupled and magnetization of core and shell reverses cooperatively. The coercivity of the FePt/Fe ₃O ₄ particles depend on the volume ratio of the hard and soft phases. The results show that the magnetic properties of the core/shell nanoparticles was readily controlled by tuning the core/shell geometrical parameters and chemical composition.

Original language	English
Pages (from-to)	792-794
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	5
DOIs	https://doi.org/10.1063/1.1776632
State	Published - Aug 2 2004

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title = "Tailoring magnetic properties of core/shell nanoparticles",

abstract = "The magnetic properties of a bimagnetic core/shell nanoparticle system with ferromagnetic FePt core and thickness-tunable, ferrimagnetic MFe 2O 4 shell were described. A single-phase-like smooth variation of magnetization with field, indicating that the core and the shell were effectively exchange coupled and magnetization of core and shell reverses cooperatively. The coercivity of the FePt/Fe 3O 4 particles depend on the volume ratio of the hard and soft phases. The results show that the magnetic properties of the core/shell nanoparticles was readily controlled by tuning the core/shell geometrical parameters and chemical composition.",

author = "Hao Zeng and Shouheng Sun and J. Li and Wang, \{Z. L.\} and Liu, \{J. P.\}",

year = "2004",

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T1 - Tailoring magnetic properties of core/shell nanoparticles

AU - Zeng, Hao

AU - Sun, Shouheng

AU - Li, J.

AU - Wang, Z. L.

AU - Liu, J. P.

PY - 2004/8/2

Y1 - 2004/8/2

N2 - The magnetic properties of a bimagnetic core/shell nanoparticle system with ferromagnetic FePt core and thickness-tunable, ferrimagnetic MFe 2O 4 shell were described. A single-phase-like smooth variation of magnetization with field, indicating that the core and the shell were effectively exchange coupled and magnetization of core and shell reverses cooperatively. The coercivity of the FePt/Fe 3O 4 particles depend on the volume ratio of the hard and soft phases. The results show that the magnetic properties of the core/shell nanoparticles was readily controlled by tuning the core/shell geometrical parameters and chemical composition.

AB - The magnetic properties of a bimagnetic core/shell nanoparticle system with ferromagnetic FePt core and thickness-tunable, ferrimagnetic MFe 2O 4 shell were described. A single-phase-like smooth variation of magnetization with field, indicating that the core and the shell were effectively exchange coupled and magnetization of core and shell reverses cooperatively. The coercivity of the FePt/Fe 3O 4 particles depend on the volume ratio of the hard and soft phases. The results show that the magnetic properties of the core/shell nanoparticles was readily controlled by tuning the core/shell geometrical parameters and chemical composition.

UR - https://www.scopus.com/pages/publications/4344569230

U2 - 10.1063/1.1776632

DO - 10.1063/1.1776632

M3 - Article

AN - SCOPUS:4344569230

SN - 0003-6951

VL - 85

SP - 792

EP - 794

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

ER -

Tailoring magnetic properties of core/shell nanoparticles

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