Animation showing the coupling of two collective atomic excitations, known as magnons and phonons

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Added by October 31, 2018

The animation is a simplified way to represent the vibration that occurs inside the solids and illustrates how phonons and magnons are interrelated. Phonons are the waves that make the molecules (circles) oscillate, while the magnons are shown as the movement of compass-like arrows (spins). The animation shows that the wave created by the phonons make the spins move and vice versa. While the standard linear spin wave theory says that this collective movement can last forever, this new research shows that phonons and magnons influence each other by coupling, and this collective movement is not stable. (Credit: Park Je-Geun, Institute for Basic Science, IBS)

Read the full article “It’s Official: Phonon and Magnon are a Couple” here:

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