Composition-mediated order-disorder transformation in FePt nanoparticles

Aaron C. Johnston-Peck; David A. Cullen; Joseph B. Tracy

doi:10.1002/ppsc.201300028

Composition-mediated order-disorder transformation in FePt nanoparticles

Aaron C. Johnston-Peck, David A. Cullen, Joseph B. Tracy

Materials MicroAnalysis

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

7 Scopus citations

Abstract

Heat-treated alloy FePt nanoparticles transform into L1₀ FePt and mixed L1₀/L1₂ FePt₃ intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L1 ₀ FePt nanoparticles.

Original language	English
Pages (from-to)	678-682
Number of pages	5
Journal	Particle and Particle Systems Characterization
Volume	30
Issue number	8
DOIs	https://doi.org/10.1002/ppsc.201300028
State	Published - Aug 2013

Keywords

electron microscopy
intermetallic phases
iron
magnetic materials
platinum

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10.1002/ppsc.201300028

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title = "Composition-mediated order-disorder transformation in FePt nanoparticles",

abstract = "Heat-treated alloy FePt nanoparticles transform into L10 FePt and mixed L10/L12 FePt3 intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L1 0 FePt nanoparticles.",

keywords = "electron microscopy, intermetallic phases, iron, magnetic materials, platinum",

author = "Johnston-Peck, \{Aaron C.\} and Cullen, \{David A.\} and Tracy, \{Joseph B.\}",

year = "2013",

month = aug,

doi = "10.1002/ppsc.201300028",

language = "English",

volume = "30",

pages = "678--682",

journal = "Particle and Particle Systems Characterization",

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T1 - Composition-mediated order-disorder transformation in FePt nanoparticles

AU - Johnston-Peck, Aaron C.

AU - Cullen, David A.

AU - Tracy, Joseph B.

PY - 2013/8

Y1 - 2013/8

N2 - Heat-treated alloy FePt nanoparticles transform into L10 FePt and mixed L10/L12 FePt3 intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L1 0 FePt nanoparticles.

AB - Heat-treated alloy FePt nanoparticles transform into L10 FePt and mixed L10/L12 FePt3 intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L1 0 FePt nanoparticles.

KW - electron microscopy

KW - intermetallic phases

KW - iron

KW - magnetic materials

KW - platinum

UR - https://www.scopus.com/pages/publications/84882568845

U2 - 10.1002/ppsc.201300028

DO - 10.1002/ppsc.201300028

M3 - Article

AN - SCOPUS:84882568845

SN - 0934-0866

VL - 30

SP - 678

EP - 682

JO - Particle and Particle Systems Characterization

JF - Particle and Particle Systems Characterization

IS - 8

ER -

Composition-mediated order-disorder transformation in FePt nanoparticles

Abstract

Keywords

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