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Science and Technology of Nanostructured Magnetic Materials (Hardcover, 1991 ed.)
Loot Price: R5,861
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Science and Technology of Nanostructured Magnetic Materials (Hardcover, 1991 ed.)
Series: NATO Science Series B:, 259
Expected to ship within 10 - 15 working days
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of progress has been made in the development of In the last twenty
years a great amount new magnetic materials. Permanent magnets have
progressed from the AlNiCo's (with (BH)m-8 MGOe) to the strong
rare-earth magnets of SmCo BH)m-20 MGOe), Sm2(Co, Fe, Cu, Zrh7 s
BH)m-30 MGOe) and the recently discovered Nd-Fe-B super-magnets
with (BH)m-50 MGOe. For years the magnetic storage industry has
employed Fe0 and CrO for storage media and 2 3 z permalloys and
ferrites for recording heads. The recent development of thin film
heads, the demand of higher density of information storage and the
emergence of completely new technologies, like magneto-optics, call
for entirely new types of magnetic materials. Another area in which
new techniques of materials preparation have made a dramatic impact
is the epitaxial growth of magnetic films. Recent work has shown
that this process can be controlled on the scale of atomic
monolayers permitting the growth of totally artificial structures,
such as artificial superlattices with a resolution on this scale.
Epitaxial growth has also permitted the stabilization of metastable
phases in thin film form. These new phases often possess striking
properties, such as strong perpendicular anisotropies, which may
prove useful for technological applications such as recording.
Research on magnetic multilayers and superlattices is increasing at
an accelerating pace. Complex couplings between different magnetic
layers lead to new properties not seen in bulk materials.
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