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Observing magnon-polarons using a nanopatterned magnetic structure lit by short laser pulses

Observing magnon-polarons using a nanopatterned magnetic structure lit by short laser pulses
In a nanopatterned magnetic structure illuminated by a short laser pulse, magnons and photons couple to form quasiparticles called magnon-polarons. Credit: APS/Alan Stonebraker/ Physics

A team of physicists from Germany, Russia, Ukraine and the United Kingdom has found a new way to observe magnon-polarons by using a nanopatterned magnetic structure lit with short laser pulses. In their paper published in the journal Physical Review B, the group describes extending prior research involving magnon-polarons to develop a better method for observing magnon polarons.


Magnons are quantized spin waves that carry information, but because they are difficult to manipulate, there have been no practical applications. Polarons are quasiparticles that have been used by researchers to study interactions between atoms and electrons in solid materials. Both magnons and polarons are the subject of research efforts aimed at packing more information into smaller spaces (for computers, smartphones, etc.) Some of that research has

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