Now showing items 1-5 of 5
S=½ chain in a staggered field: high-energy bound-spinon state and the effects of a discrete lattice
(American Physical Society, 2005-03-01)
We report an experimental and theoretical study of the antiferromagnetic S=½ chain subject to uniform and staggered fields. Using inelastic neutron scattering, we observe a bound-spinon state at high energies in the linear ...
Spinons in the strongly correlated copper oxide chains in SrCuO2
(American Physical Society, 2004-08-20)
We have investigated the spin dynamics in the strongly correlated chain copper oxide SrCuO2 for energies up to ≥0.6 eV using inelastic neutron scattering. We observe a gapless continuum of magnetic excitations, which is ...
Bound spinons in an antiferromagnetic S=1/2 chain with a staggered field
(American Physical Society, 2004-07-02)
Inelastic neutron scattering was used to measure the magnetic field dependence of spin excitations in the antiferromagnetic S=1/2 chain CuCl2·2(dimethylsulfoxide) in the presence of uniform and staggered fields. Dispersive ...
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) ...
Spin-trimer antiferromagnetism in La4Cu3MoO12
(American Physical Society, 2005-06-01)
La4Cu3MoO12 is a cluster antiferromagnet where copper spin-1/2 trimers form a network of strongly coupled spin trimers. The magnetic properties of this material have been examined using magnetic neutron scattering. At low ...