An illustration of the experiment showing two gold electrodes atop a thin magnetic layer. In the middle lies a superconducting electrode. With the left gold electrode, the researchers generate spin waves in the magnetic material, which travel to the right. On top of the electrodes is a square diamond membrane, which allows the researchers to see right through the superconducting electrode. (Courtesy: Michael Borst, TU Delft)
Placing a superconducting electrode on top of a thin magnet makes it possible to manipulate and cont
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Isabelle Dumé
is a contributing editor to Physics World