Evidence for Dimer Crystal Melting in the Frustrated Spin-Ladder BiCu2PO6

K. -Y. Choi, J. W. Hwang, P. Lemmens +3

In the spin ladder compound BiCu${}_2$PO${}_6$ there exists a decisive dynamics of spin excitations that we classify and characterize using inelastic light scattering. We observe low-e…