Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2006-08-09
Phys. Rev. B 75, 094420 (2007)
Physics
Condensed Matter
Strongly Correlated Electrons
11 pages
Scientific paper
10.1103/PhysRevB.75.094420
Appearance of the second coherent peak in the dynamical structure factor of an asymmetric spin ladder is suggested. The general arguments are confirmed by the first order (with respect to the asymmetry) calculation for a spin ladder with singlet-rung ground state. Basing on this result a new interpretation is proposed for the inelastic neutron scattering data in the spin gap compound CuHpCl.
Bibikov P. N.
Vyazovsky M. I.
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