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Effects of hydrogen...
Effects of hydrogen implantation on the magnetocaloric properties of amorphous FeZr films
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- Alouhmy, M. (författare)
- Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco.
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- Moubah, Reda (författare)
- Uppsala universitet,Materialfysik,Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco.
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- Alouhmy, G. (författare)
- Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco.
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- Abid, M. (författare)
- Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco.
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- Lassri, H. (författare)
- Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco.
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Hassan II Univ Casablanca, LPMMAT, FSAC, BP 5366 Maarif,Route dEl Jadida,Km 8, Casablanca, Morocco Materialfysik (creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Vacuum. - : Elsevier. - 0042-207X .- 1879-2715. ; 186
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report on the effects of H-implantation on the magnetic and magnetocaloric properties of amorphous FeZr films. Arrott plots reveal a second order ferromagnetic to paramagnetic phase transition for the as-grown and H-implanted films, with an increase in T-C from 160 to 200 K upon implantation. The maximum change in magnetic entropy (-Delta S-M) increases from 0.66 to 0.77J/kgK for a field change mu 0 Delta H = 1.5T, as well as the relative cooling power (RCP) values were improved from 84.5 to 108.6J/kg. This improvement was attributed to the increase in magnetization and chemical inhomogeneity induced by the implantation process. The increase in the chemical inhomogeneity was supported by the determination of the local exponent n extracted from the slope of Ln(-Delta S-M) as a function of Ln(mu 0H), which is line with the simulated depth profile of hydrogen atoms through the FeZr film.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Magnetic refrigeration technology
- Ion implantation
- Amorphous alloys
- Magnetocaloric properties
- Magnetic properties
- Relative cooling power
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