Originally posted by twhitehead
The thread title confused me a bit till I realised it should be AMD.
How would spintronics eliminate resistance in the processor circuitry? Or is it because nothing that is not actively doing logic does not draw power?
The thread title confused me a bit till I realized it should be AMD.
Oh yes, didn't notice that. I can see how that could be confusing.
How would spintronics eliminate resistance in the processor circuitry?
It doesn't do anything to reduce electrical resistance nor increase electrical conductivity of the materials that make up each wire but, because the signals are not represented by current in a spin circuit but by the spin bias (of electrons ) , there is only need for a minute amount of electric current to send down each wire to send each signal. Some tiny amount of current is still needed to send down the electrons with spin bias but only a minute proportion of that current that would have to be sent down that wire if it was the current, not the spin bias, that represents the signal. Because the required current is many times less in a spintronic wire, the energy losses through the electrical resistance would be many times less even if the material that makes up the wire, as like some of the materials being considered to be used for this in spintronic research, is not a particularly good electric conductor! This is why spintronics promises to make microchips many times more energy efficient.
As a couple of bonus, I have also heard that spintronics also promises to make the speed of the signals and of the circuits much greater and it also promises to massively improve computer memory with greater access speed and energy efficiency although.
But I must confess, although I understand why spintronics would help make circuits use less energy, I don't understand why spintronics would help with speed in particular -I have merely heard it should do.
does any one here know and would explain here?