Modification of magnetic properties of epitaxial Co/Cu multilayers by 1 MeV C+ irradiation

M. C. Sung; D. G. You; H. S. Park; J. C. Lee; S. Y. Ie; I. S. Kim; J. Lee; C. N. Whang; S. Im; K. Jeong; T. G. Kim; J. S. Yang; J. H. Song

doi:10.1063/1.1384483

Modification of magnetic properties of epitaxial Co/Cu multilayers by 1 MeV C⁺ irradiation

M. C. Sung, D. G. You, H. S. Park, J. C. Lee, S. Y. Ie, I. S. Kim, J. Lee, C. N. Whang, S. Im, K. Jeong, T. G. Kim, J. S. Yang, J. H. Song

Department of Physics

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14 Citations (Scopus)

Abstract

Epitaxial [Co/Cu]₁₀ grown on Si (001) has been irradiated by 1 MeV C⁺ with a dose of 1 × 10¹⁶/cm². The intrinsic characteristics of epitaxy, such as crystal structure and fourfold magnetic anisotropy, are conserved after ion irradiation. However, the extrinsic magnetic properties are changed such that the coercivity decreases and the squareness of the hysteresis loop is noticeably improved. The intensity of the Cu (200) peak in the x-ray diffraction pattern increases about three times and its half-width decreases after irradiation. It is concluded that the changes of magnetic properties induced by ion irradiation result from the grain growth and the improved crystalline quality.

Original language	English
Pages (from-to)	2036-2038
Number of pages	3
Journal	Journal of Applied Physics
Volume	90
Issue number	4
DOIs	https://doi.org/10.1063/1.1384483
Publication status	Published - 2001 Aug 15

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.1384483

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title = "Modification of magnetic properties of epitaxial Co/Cu multilayers by 1 MeV C+ irradiation",

abstract = "Epitaxial [Co/Cu]10 grown on Si (001) has been irradiated by 1 MeV C+ with a dose of 1 × 1016/cm2. The intrinsic characteristics of epitaxy, such as crystal structure and fourfold magnetic anisotropy, are conserved after ion irradiation. However, the extrinsic magnetic properties are changed such that the coercivity decreases and the squareness of the hysteresis loop is noticeably improved. The intensity of the Cu (200) peak in the x-ray diffraction pattern increases about three times and its half-width decreases after irradiation. It is concluded that the changes of magnetic properties induced by ion irradiation result from the grain growth and the improved crystalline quality.",

author = "Sung, {M. C.} and You, {D. G.} and Park, {H. S.} and Lee, {J. C.} and Ie, {S. Y.} and Kim, {I. S.} and J. Lee and Whang, {C. N.} and S. Im and K. Jeong and Kim, {T. G.} and Yang, {J. S.} and Song, {J. H.}",

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doi = "10.1063/1.1384483",

language = "English",

volume = "90",

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journal = "Journal of Applied Physics",

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TY - JOUR

T1 - Modification of magnetic properties of epitaxial Co/Cu multilayers by 1 MeV C+ irradiation

AU - Sung, M. C.

AU - You, D. G.

AU - Park, H. S.

AU - Lee, J. C.

AU - Ie, S. Y.

AU - Kim, I. S.

AU - Lee, J.

AU - Whang, C. N.

AU - Im, S.

AU - Jeong, K.

AU - Kim, T. G.

AU - Yang, J. S.

AU - Song, J. H.

PY - 2001/8/15

Y1 - 2001/8/15

N2 - Epitaxial [Co/Cu]10 grown on Si (001) has been irradiated by 1 MeV C+ with a dose of 1 × 1016/cm2. The intrinsic characteristics of epitaxy, such as crystal structure and fourfold magnetic anisotropy, are conserved after ion irradiation. However, the extrinsic magnetic properties are changed such that the coercivity decreases and the squareness of the hysteresis loop is noticeably improved. The intensity of the Cu (200) peak in the x-ray diffraction pattern increases about three times and its half-width decreases after irradiation. It is concluded that the changes of magnetic properties induced by ion irradiation result from the grain growth and the improved crystalline quality.

AB - Epitaxial [Co/Cu]10 grown on Si (001) has been irradiated by 1 MeV C+ with a dose of 1 × 1016/cm2. The intrinsic characteristics of epitaxy, such as crystal structure and fourfold magnetic anisotropy, are conserved after ion irradiation. However, the extrinsic magnetic properties are changed such that the coercivity decreases and the squareness of the hysteresis loop is noticeably improved. The intensity of the Cu (200) peak in the x-ray diffraction pattern increases about three times and its half-width decreases after irradiation. It is concluded that the changes of magnetic properties induced by ion irradiation result from the grain growth and the improved crystalline quality.

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JF - Journal of Applied Physics

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Modification of magnetic properties of epitaxial Co/Cu multilayers by 1 MeV C⁺ irradiation

Abstract

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