Interplay between structural and magnetic properties of L10-FePt(001) thin films directly grown on MgO(001)

Bart Laenens; F M Almeida; Niki Planckaert; Kristiaan Temst; J Meersschaut; A Vantomme; Christian Rentenberger; Marcus Rennhofer; Bogdan Sepiol

doi:10.1063/1.3093955

Interplay between structural and magnetic properties of L10-FePt(001) thin films directly grown on MgO(001)

Bart Laenens
, F M Almeida
, Niki Planckaert
, Kristiaan Temst
, J Meersschaut
, A Vantomme
, Christian Rentenberger
, Marcus Rennhofer
, Bogdan Sepiol

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

We present a detailed study of the magnetic and structural properties of L10-FePt thin films. The films are prepared via molecular beam epitaxy directly onto MgO(001) substrates, i.e., without buffer layer. Despite the large lattice misfit between the in-plane lattice parameters of L10 FePt and MgO, highly ordered thin films are obtained with the easy magnetization c axis perpendicular to the film plane. Via high resolution transmission electron microscopy and Rutherford backscattering measurements we focus on the FePt/MgO interface to study the misfit relaxation and the defect density. Further, the influence of elevated substrate temperatures and of postgrowth high temperature annealing on the structural and magnetic properties is discussed

Original language	English
Article number	073913
Number of pages	6
Journal	Journal of Applied Physics
Volume	105
Issue number	7
DOIs	https://doi.org/10.1063/1.3093955
Publication status	Published - 2009

Austrian Fields of Science 2012

103023 Polymer physics
210006 Nanotechnology
103018 Materials physics

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10.1063/1.3093955

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title = "Interplay between structural and magnetic properties of L10-FePt(001) thin films directly grown on MgO(001)",

abstract = "We present a detailed study of the magnetic and structural properties of L10-FePt thin films. The films are prepared via molecular beam epitaxy directly onto MgO(001) substrates, i.e., without buffer layer. Despite the large lattice misfit between the in-plane lattice parameters of L10 FePt and MgO, highly ordered thin films are obtained with the easy magnetization c axis perpendicular to the film plane. Via high resolution transmission electron microscopy and Rutherford backscattering measurements we focus on the FePt/MgO interface to study the misfit relaxation and the defect density. Further, the influence of elevated substrate temperatures and of postgrowth high temperature annealing on the structural and magnetic properties is discussed",

author = "Bart Laenens and Almeida, \{F M\} and Niki Planckaert and Kristiaan Temst and J Meersschaut and A Vantomme and Christian Rentenberger and Marcus Rennhofer and Bogdan Sepiol",

year = "2009",

doi = "10.1063/1.3093955",

language = "English",

volume = "105",

journal = "Journal of Applied Physics",

issn = "0021-8979",

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T1 - Interplay between structural and magnetic properties of L10-FePt(001) thin films directly grown on MgO(001)

AU - Laenens, Bart

AU - Almeida, F M

AU - Planckaert, Niki

AU - Temst, Kristiaan

AU - Meersschaut, J

AU - Vantomme, A

AU - Rentenberger, Christian

AU - Rennhofer, Marcus

AU - Sepiol, Bogdan

PY - 2009

Y1 - 2009

N2 - We present a detailed study of the magnetic and structural properties of L10-FePt thin films. The films are prepared via molecular beam epitaxy directly onto MgO(001) substrates, i.e., without buffer layer. Despite the large lattice misfit between the in-plane lattice parameters of L10 FePt and MgO, highly ordered thin films are obtained with the easy magnetization c axis perpendicular to the film plane. Via high resolution transmission electron microscopy and Rutherford backscattering measurements we focus on the FePt/MgO interface to study the misfit relaxation and the defect density. Further, the influence of elevated substrate temperatures and of postgrowth high temperature annealing on the structural and magnetic properties is discussed

AB - We present a detailed study of the magnetic and structural properties of L10-FePt thin films. The films are prepared via molecular beam epitaxy directly onto MgO(001) substrates, i.e., without buffer layer. Despite the large lattice misfit between the in-plane lattice parameters of L10 FePt and MgO, highly ordered thin films are obtained with the easy magnetization c axis perpendicular to the film plane. Via high resolution transmission electron microscopy and Rutherford backscattering measurements we focus on the FePt/MgO interface to study the misfit relaxation and the defect density. Further, the influence of elevated substrate temperatures and of postgrowth high temperature annealing on the structural and magnetic properties is discussed

U2 - 10.1063/1.3093955

DO - 10.1063/1.3093955

M3 - Article

SN - 0021-8979

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 073913

ER -

Interplay between structural and magnetic properties of L10-FePt(001) thin films directly grown on MgO(001)

Abstract

Austrian Fields of Science 2012

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