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Researchers from the University of Leeds and Sheffield University have created a way to move data through magnetic nanowires by using surface acoustic waves as the motivating force. Being developed for use in so-called racetrack solid-state memory, the researchers claim that using sound waves for data transfer should markedly increase computer processing speeds while vastly reducing power consumption.
[...] Looking for a way to overcome these power inefficiencies, Dr Tom Hayward from the University of Sheffield and Professor John Cunningham from the University of Leeds together hit upon the idea of manipulating magnetic domain walls by passing two counter-propagating surface acoustic waves (SAW) across the piezoelectric substrate to which the nanowires are fixed.
In other words, the researchers sent two sound waves across the surface of a racetrack memory in opposite directions. Where the sound waves met, a standing acoustic wave was formed which was then used to isolate and manipulate the arrays for the more efficient movement of energy across the magnetic domain walls.
Pretty neat. But will it drive your dog crazy?
(Score: 0) by Anonymous Coward on Thursday November 12 2015, @03:11PM
Didn't we use to call that a "modem"?
(Score: 2) by Freeman on Thursday November 12 2015, @04:00PM
No. Modems didn't use sound waves as a transmission vector. Sure, you ended up hearing things while you were being connected, but that's simply due to the fact that there was a speaker attached providing feedback.
Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
(Score: 0) by Anonymous Coward on Thursday November 12 2015, @08:55PM
so, this analog modem I have, where I actually secured the rotary phone handset into it and secured the cups around the mouth and earpieces - which gave me 300 bps -- wasn't using sound?
Then what was it modulating the digital to and demodulating it from?