More on Spintronics

Posted by michael on Saturday August 9, 2003 @01:17PM from the round-and-round-she-goes dept.

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.'"

1 of 202 comments (clear)

Min score:

Reason:

Sort:

Re:Does Anyone Remember Cold Fusion? by kenthorvath · 2003-08-09 14:02 · Score: 5, Interesting

At subatomic levels, every process is 100% efficient. The basic principles that you learn in mechanics which warn you that there is no such thing as a perpetual motion machine, etc... are results of statistics and macroscopic effects. Microscopic is not miniaturized macroscopic.