More on Spintronics

segment writes "'We have discovered the equivalent of a new 'Ohm's Law' for spintronics - the emerging science of manipulating the spin of electrons for useful purposes,' says Shoucheng Zhang, a physics professor at Stanford. 'Unlike the Ohm's Law for electronics, the new 'Ohm's Law' that we've discovered says that the spin of the electron can be transported without any loss of energy, or dissipation. Furthermore, this effect occurs at room temperature in materials already widely used in the semiconductor industry, such as gallium arsenide.'"

Comments

This makes me think of .....

[3seas]

Communication faster than teh speed of light that is very slow.

In theory you take a rod that goes from one galaxy to a distant galaxy many many lighyt years away. With a slight movement on one end of the rod, ina back and forth movement, the other end moves, effectively allowing communication based upon movement. Movement that is far slower than the speed of light but able to communicate to distances beyond the limitation of the speed of light.

Of course that is a simple theory only to communicate the concept of accomplishing something in a different way that is not possible on other ways. Like tryingto do advanced math using roman numerals instead of the decimal system that includes the zero place holder.

So does this spin thing make it possible to achieve antigravity or super conductivity in common use? If so, then aren't there other human resistance factors to deal with that may be more difficult and non-natural to have to deal with and overcome?

It took 300 years for the Hindu-Arabic decimal system to propogate thru the constraints of the roman numeral system supporters, regardless of the improvement in ease of math that was made possible, not to mention the technology that needed it, to be come a reality (computers).

but did he find all 3 versions???

[mz001b]

TAing freshman physics, you always had to write down all 3 'versions' of Ohm's law:

V=IR

I=V/R

R=V/I

Re:but did he find all 3 versions???

[tzanger]

So the intro to physics didn't have a pre-requisite for basic algebra? You must TA in one fucked up school.

soviet russia

[grep_who]

everyone talks about soviet russia like it was a bad thing... at times it seems like its better to "be pointed in the right direction" then attempt finding it yourself. have you tried being a sore thumb? do u know how fast you will be crushed into submission by neighbouring domains?! why bother, it takes too much eV to be a rebel.