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Zero-field cooled m...
Zero-field cooled magnetization of amorphous Fe1-xCx particles - field dependence of the maximum
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- Hanson, Maj (author)
- Chalmers University of Technology, Sweden
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- Johansson, Christer (author)
- RISE,Acreo,Chalmers University of Technology, Sweden
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- Mörup, Steen (author)
- Chalmers University of Technology, Sweden
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(creator_code:org_t)
- 1999-01-01
- 1995
- English.
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In: Journal of Physics: Condensed Matter. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 7, s. 9263-9268
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We measured the zero-field cooled magnetization, MZPC of a frozen magnetic liquid with amorphous Fe1-xCx particles. MZFC has a maximum at Tp approximately=20 K, which is interpreted as due to blocking of superparamagnetic relaxation in single particles. The maximum shifts towards higher temperatures with increasing measuring field. The shift is explained by the nonlinear field dependence of the magnetization of particles with a size distribution. At temperatures below Tp the magnetic particles have a coercivity and remanence in good agreement with those expected for an ensemble of non-interacting uniaxial particles with a random distribution of easy axes.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Keyword
- magnetic nanoparticles
- Magnetic analysis
Publication and Content Type
- ref (subject category)
- art (subject category)
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