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Post Info TOPIC: Spintronic
Blobrana


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RE: Spintronic
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Spin-based electronics gets boost
The field of "spintronics" - a future means of computing - is shown to work at room temperature for the first time.

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Blobrana


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Physicists in France have used a different take on the Doppler shift to measure the rate at which currents of spin-polarised electrons flow through a conductor. The technique could help in the development of spintronic devices, which use both the spin and current of electrons to store and process information more efficiently than conventional electronics.
Spintronics relies on the manipulation of spin currents in which most electrons have spin magnetic moments pointing in a particular direction. Such currents could be used, for example, to reverse the direction of magnetization of a magnetic data bit.

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Blobrana


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Quantum spin Hall effect
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Physicists in Germany and the US have seen the first hints of an unusual solid-state phenomenon known as the quantum spin Hall effect (QSHE), in which spin-polarized electrons at the edges of an insulator are able to conduct. The researchers have seen this edge conduction in thin sheets of mercury telluride although they were not actually able to confirm that these edge electrons were spin-polarized. QSHE is interesting because it could be useful for making spintronic devices that exploit both the spin and charge of the electron

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Blobrana


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Researchers have taken the first step toward building silicon-based computers that use a fraction of the power of today's machines. A team has injected electrons into silicon in such a way that their spins, or magnetic orientations, tend to be aligned in one direction instead of the other.
Although the reported effect is subtle, silicon has never before supported such attempts to implement spintronicsthe manipulation of electrons by their spins instead of their charges.

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Blobrana


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Scientists have created novel ‘spintronic’ devices that could point the way for the next generation of more powerful and permanent data storage chips in computers.
Physicists at the Universities of Bath, Bristol and Leeds have discovered a way to precisely control the pattern of magnetic fields in thin magnetic films, which can be used to store information.

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Blobrana


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An unpopular pigment used by artists in the 18th Century could lead to more energy efficient, faster computers.

Cobalt green, as the dye is known, has been tested by a US team who believe it could be used in "spintronic" devices.
Spintronics involves manipulating the magnetic properties of electrons to do useful computational work.
Cobalt green may be useful for building working devices as it can be used at room temperature, unlike many other materials which must be supercooled.

"The big challenge is to develop materials that can perform these kinds of functions not just at cryogenic temperatures but at practical temperatures" - Professor Daniel Gamelin of the University of Washington in Seattle, one of the team that carried out the work.

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