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Effects of carbon implantation on the low temperature magnetism behavior in amorphous Fe93Zr7 films
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- Alouhmy, M. (author)
- Hassan II Univ Casablanca, Fac Sci Ain Chock, LPMAT, BP 5366, Casablanca, Morocco.
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- Moubah, Reda (author)
- Uppsala universitet,Materialfysik,Hassan II Univ Casablanca, Fac Sci Ain Chock, LPMAT, BP 5366, Casablanca, Morocco
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- Charkaoui, A. (author)
- Hassan II Univ Casablanca, Fac Sci Ain Chock, LPMAT, BP 5366, Casablanca, Morocco.
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- Hassan II Univ Casablanca, Fac Sci Ain Chock, LPMAT, BP 5366, Casablanca, Morocco Materialfysik (creator_code:org_t)
- Elsevier, 2022
- 2022
- English.
- In: Materials Science & Engineering. - : Elsevier. - 0921-5107 .- 1873-4944. ; 279
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We present a detailed investigation on the effects of C-implantation on low temperature magnetic behavior in Fe93Zr7 amorphous films using spin wave theory, law of approach to saturation, and Alben and Becker's theory. Significant increase in Curie temperature with a decrease in coercivity were observed upon C-implantation. Bloch's law was used to analyze the temperature dependence of magnetization, and several important param-eters were extracted such as the stiffness constant of the spin wave, and the exchange constant. The local random anisotropy constant decreases from 0.35 to 0.19 MJ/m(3) with increasing carbon concentration from 0 to 11%. The ferromagnetic correlation length for which the anisotropy directions are assumed to be arbitrarily oriented in-creases significantly with increasing carbon content. By the use of the theory of Alben and Becker, we also extracted the local anisotropy from coercivity, and reasonable agreement was found with random magnetic anisotropy approach.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Amorphous films
- Random magnetic anisotropy
- Spin wave stiffness constant
- Coercivity
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Alouhmy, M.
- Moubah, Reda
- Charkaoui, A.
- Sajieddine, M.
- Abid, M.
- Lassri, H.
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
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