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Handbook of Magnetic Materials, Volume 14 (Hardcover)
Loot Price: R5,568
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Handbook of Magnetic Materials, Volume 14 (Hardcover)
Series: Handbook of Magnetic Materials
Expected to ship within 12 - 17 working days
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Magnetoelectronics is a novel and rapidly developing field. This
new field is frequently referred to as spin-electronics or
spintronics. It includes spin-utilizing devices that need neither a
magnetic field nor magnetic materials. In semiconductor devices,
the spin of the carriers has only played a very modest role so far
because well established semiconductor devices are non-magnetic and
show only negligible effects of spin. Nanoscale thin films and
multilayers, nanocrystalline magnetic materials, granular films,
and amorphous alloys have attracted much attention in the last few
decades, in the field of basic research as well as in the broader
field of materials science. Such heterogeneous materials display
uncommon magnetic properties that virtually do no occur in bulk
materials. This is true, in particular with respect to surface
(interface) magnetic anisotropy and surface (interface)
magnetostrictive strains and giant magnetoresistance. The local
atomic arrangement at the interface differs strongly from that in
the bulk. The local symmetry is lowered, so that some interactions
are changed or are missing altogether.
The interface atoms may envisaged as forming a new phase and some
properties characteristic of this phase may become predominant for
the entire system.
This becomes particularly evident in the case of interfacial
magnetostriction which can lead to a decrease (almost to zero) or
to an increase(over the bulk value) of the resulting
magnetostriction of the nanoscale system.
There are various forms of the interplay of magnetism and
superconductivity, which can be divided into competition and
coexistence phenomena. For instance, a strong competition is found
in high-Tc cuprates. In these materials, depending on the doping
rate, either Neel-type antiferromagnetism moments (e.g. from
4f-elements) with superconductivity is known to occur in systems
where the concentration of these moments is sufficiently small or
where they are antiferromagnetically ordered and only weakly
coupled to the conduction electrons.
During the years, intermetallic gadolinium compounds have adopted a
special position in the study of 4f electron magnetism. The reason
for this is the fact that the gadolinium moment consists only of a
pure spin moment, orbital contributions to the moment being absent.
As a consequence, gadolinium compounds have been regarded as ideal
test benches for studying exchange interactions, free from
complications due to crystal effects.
Volume 14 of the Handbook of Magnetic Materials, as the preceding
volumes, has a dual purpose. As a textbook it is intended to be of
assistance to those who wish to be introduced to a given topic in
the field of magnetism without the need to read the vast amount of
literature published. As a work of reference it is intended for
scientists active in magnetism research. To this dual purpose,
volume 14 of the Handbook is composed of topical review articles
written by leading authorities. In each of these articles an
extensive description is given in graphical as well as tabular
form, much emphasis being placed on the discussion of the
experimental material in the framework of physics, chemistry and
material science.
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