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Unexpected phase locking of magnetic fluctuations in the multi-<b>k</b>magnet USb

Unexpected phase locking of magnetic fluctuations in the multi-<b>k</b>magnet USb

The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature ${T}_{N}$. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to …