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Spin dynamics in the stripe phase of the cuprate superconductors
Brian Møller Andersen1, Per Hedegård
1Ørsted Laboratory, Niels Bohr Institute, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
Abstract:
Within a model that supports stripe spin and charge order coexisting with a d(x2-y2)-wave superconducting phase, we study the self-consistently obtained electronic structure and the associated transverse dynamical spin susceptibility. In the coexisting phase of superconducting and static stripe order, the resulting particle-hole continuum can strongly damp parts of the low-energy spin-wave branches. This provides insight into recent inelastic neutron scattering data revealing the dispersion of the low-energy collective magnetic modes of lanthanum based cuprate superconductors.
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