Low-energy excitations in geometrically frustrated magnets

Evidence for unidimensional low-energy excitations as the origin of persistent spin dynamics in geometrically frustrated magnets.
A. Yaouanc, P. Dalmas de Réotier, A. Bertin, C. Marin, E. Lhotel, A. Amato, and C. Baines

Phys. Rev. B 91, 104427 (2015)

(a) Rare-earth ions lattice in the pyrochlore R2M2O7 and normal spinel CdR2X4 compounds. The thicker light blue (thinner dark blue) bold line represents a 6 (10)-site loop. (b) Low-temperature heat capacity of CdHo2S4.