Neutron scattering evidence for isolated spin-1/2 ladders in (C${}_5$D${}_{12}$N)${}_2$CuBr${}_4$

A. T. Savici, G. E. Granroth, C. L. Broholm +7

Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground state system of fully deuterated BPCB, (C${}_5$D${}_{12}$N)${}_2$CuBr${}_4$. A 2-leg sp…