Spintronics refers to electronic devices that perform logic operations based on not just the electrical charge of carriers but also their spin. For example, information could be transported or stored through the spin-up or spin-down states of electrons. This is a new area of research, and issues include the injection of spin-polarized carriers, their transport, and their detection. The role of nanoscale structure and electronic properties of the ferromagnetic-semiconductor interface on the spin injection process, the growth of new ferromagnetic semiconductors with nanoscale control, and the possible use of nanostructured features to manipulate spin are all of interest.
Examples-from-biological-and-mechanical-realms-illustrate-various-orders-ofExamples from biological and mechanical realms illustrate various “orders of magnitude” …[Credits : Encyclopædia Britannica, Inc.]
The-structure-of-buckminsterfullereneThe structure of buckminsterfullerene (C60).[Credits : Encyclopædia Britannica, Inc.]
Top-down-approaches-have-been-developed-for-building-structures-atTop-down approaches have been developed for building structures at the scale of the micrometre …[Credits : Encyclopædia Britannica, Inc.]
Phospholipid-molecules-composed-of-fatty-acid-tails-and-a-phosphatePhospholipid molecules, composed of fatty acid “tails” and a phosphate …[Credits : Encyclopædia Britannica, Inc.]
Coherent-X-ray-diffraction-patterns-such-as-the-one-shownCoherent X-ray diffraction patterns, such as the one shown here of a nanosized metal cube, can be …[Credits : Reprinted by permission from Macmillan Publishers Ltd.; Nature, July 6, 2006, vol. 442, …]
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