Is gadolinium really ferromagnetic?
Article Abstract:
It can be argued that the magnetic order between the spin-reorientation temperature, Tst, and the Curie point, Tc, in gadolinium, regarded as one of the four ferromagnetic elements, is not truly ferromagnetic. Instead, it has similarities with the incommensurate order found in erbium. Recent research has been able to identify the real and imaginary components, X' and X'', for the two directions in the vicinity of Tc, after correcting for the demagnetizing effect. It may be possible to confirm that gadolinium is not really ferromagnetic by looking at it close to Tc and directly observing the long-period modulation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Beating the superparamagnetic limit with exchange bias
Article Abstract:
The magnetic exchange coupling induced at the interface between ferromagnetic and antiferromagnetic systems 8,9 can provide an extra source of anisotropy leading to magnetization stability is shown. This principle is demonstrated for ferromagnetic cobalt nanoparticles of about 4nm in diameter.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Beating the superparamagnetic limit with exchange bias
Article Abstract:
The magnetic exchange coupling induced at the interface between ferromagnetic and antiferromagnetic systems 8,9 can provide an extra source of anisotropy leading to magnetization stability is shown. This principle is demonstrated for ferromagnetic cobalt nanoparticles of about 4nm in diameter.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
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