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Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)2CuBr4
(American Physical Society, 2009-09-01)
Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground-state system of fully deuterated BPCB, (C5D12N)2CuBr4. A two-leg spin-1/2 ladder model, with J⊥=(1.09±0.01) meV and J∥=(0.296±0.005) ...