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Exchange-coupled Fe...
Exchange-coupled FePtB nano-composite hard magnets produced by pulsed laser deposition
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Kaushik, Neelam (författare)
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Sharma, Parmanand (författare)
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- Nagar, Sandeep (författare)
- KTH,Teknisk materialfysik
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- Rao, K. V. (författare)
- KTH,Teknisk materialfysik
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Kimura, Hisamichi (författare)
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Makino, Akihiro (författare)
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Inoue, Akihisa (författare)
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(creator_code:org_t)
- Elsevier BV, 2010
- 2010
- Engelska.
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Ingår i: Materials Science & Engineering. - : Elsevier BV. - 0921-5107 .- 1873-4944. ; 171:1-3, s. 62-68
- 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
- Nano-composite FePtB thin films were deposited on naturally oxidized (1 0 0) silicon (Si) and glass (SiO2) substrates by using a pulsed laser deposition (PLO) technique. Effects of processing conditions on structural, surface and magnetic properties of the films were examined. Growth temperature (T-s) and the type of substrate (Si or SiO2) are shown to affect crystal structure and magnetic properties of FePtB thin films significantly. Under optimized processing conditions, a similar to 1.7 mu m thick FePtB film deposited on a glass substrate exhibits high coercivity (similar to 7.7 kOe), high reduced remanence [(M-r/M-s) similar to 0.9] and high energy product (BH)(max) = 71 kJ/m(3). The films exhibiting good hard magnetic properties are mainly made-up of nano-sized hard (L1(0)-FePt) and soft (iron-boride) magnetic phases, which are shown to be exchange coupled. Fabrication of hard magnetic thin films by a simple and fast technique such as PLD is very promising for the production of micro magnets for MEMS applications.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Övrig annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
Nyckelord
- FePtB thin films
- Hard magnetic material
- Exchange-coupled magnets
- Nano-composite magnet
- Pulsed laser deposition
- Thin films
- Material physics with surface physics
- Materialfysik med ytfysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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