Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation

G. S. Chang; A. Moewes; S. H. Kim; J. Lee; K. Jeong; C. N. Whang; D. H. Kim; S. C. Shin

doi:10.1063/1.2180867

Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation

G. S. Chang^*
, A. Moewes
, S. H. Kim
, J. Lee
, K. Jeong
, C. N. Whang
, D. H. Kim
, S. C. Shin

^*Corresponding author for this work

Chemistry Education

University of Saskatchewan
Yonsei University
Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

29 Scopus citations

Abstract

The mechanism for ion-induced uniaxial magnetic anisotropy of ferromagnetic CoPt thin films is investigated using x-ray diffraction and soft x-ray emission spectroscopy. When CoPt multilayers 64 nm thick are irradiated with 80 keV Ar+ ions in an externally applied magnetic field, the magnetization of the ion-irradiated area shows a significant anisotropic angular dispersion in its hysteresis. Analysis of x-ray diffraction patterns and Co L3 emission spectra reveals that the formation of partially ordered (face-centered-tetragonal) CoPt phase and nonequivalent electronic hybridization between easy and hard axes causes the induction of a uniaxial magnetic anisotropy.

Original language	English
Article number	092504
Journal	Applied Physics Letters
Volume	88
Issue number	9
DOIs	https://doi.org/10.1063/1.2180867
State	Published - 2006.02.27

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10.1063/1.2180867

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@article{2cfc32c2b5d742c081cb68f7edfbaa77,

title = "Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation",

abstract = "The mechanism for ion-induced uniaxial magnetic anisotropy of ferromagnetic CoPt thin films is investigated using x-ray diffraction and soft x-ray emission spectroscopy. When CoPt multilayers 64 nm thick are irradiated with 80 keV Ar+ ions in an externally applied magnetic field, the magnetization of the ion-irradiated area shows a significant anisotropic angular dispersion in its hysteresis. Analysis of x-ray diffraction patterns and Co L3 emission spectra reveals that the formation of partially ordered (face-centered-tetragonal) CoPt phase and nonequivalent electronic hybridization between easy and hard axes causes the induction of a uniaxial magnetic anisotropy.",

author = "Chang, \{G. S.\} and A. Moewes and Kim, \{S. H.\} and J. Lee and K. Jeong and Whang, \{C. N.\} and Kim, \{D. H.\} and Shin, \{S. C.\}",

year = "2006",

month = feb,

day = "27",

doi = "10.1063/1.2180867",

language = "English",

volume = "88",

journal = "Applied Physics Letters",

issn = "0003-6951",

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TY - JOUR

T1 - Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation

AU - Chang, G. S.

AU - Moewes, A.

AU - Kim, S. H.

AU - Lee, J.

AU - Jeong, K.

AU - Whang, C. N.

AU - Kim, D. H.

AU - Shin, S. C.

PY - 2006/2/27

Y1 - 2006/2/27

N2 - The mechanism for ion-induced uniaxial magnetic anisotropy of ferromagnetic CoPt thin films is investigated using x-ray diffraction and soft x-ray emission spectroscopy. When CoPt multilayers 64 nm thick are irradiated with 80 keV Ar+ ions in an externally applied magnetic field, the magnetization of the ion-irradiated area shows a significant anisotropic angular dispersion in its hysteresis. Analysis of x-ray diffraction patterns and Co L3 emission spectra reveals that the formation of partially ordered (face-centered-tetragonal) CoPt phase and nonequivalent electronic hybridization between easy and hard axes causes the induction of a uniaxial magnetic anisotropy.

AB - The mechanism for ion-induced uniaxial magnetic anisotropy of ferromagnetic CoPt thin films is investigated using x-ray diffraction and soft x-ray emission spectroscopy. When CoPt multilayers 64 nm thick are irradiated with 80 keV Ar+ ions in an externally applied magnetic field, the magnetization of the ion-irradiated area shows a significant anisotropic angular dispersion in its hysteresis. Analysis of x-ray diffraction patterns and Co L3 emission spectra reveals that the formation of partially ordered (face-centered-tetragonal) CoPt phase and nonequivalent electronic hybridization between easy and hard axes causes the induction of a uniaxial magnetic anisotropy.

UR - https://www.scopus.com/pages/publications/33644699746

U2 - 10.1063/1.2180867

DO - 10.1063/1.2180867

M3 - Journal article

AN - SCOPUS:33644699746

SN - 0003-6951

VL - 88

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 092504

ER -

Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation

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