Raman resonance in spin-S two-leg spin-ladder systems

A. Donkov, A. V. Chubukov

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We argue that the Raman intensity in a spin-S two-leg spin ladder has a pseudoresonance peak, whose width is very small at large S. The pseudoresonance originates from the existence of a local minimum in the magnon excitation spectrum, and is located slightly below twice the magnon energy at the minimum. The physics behind the peak is similar to the excitonic scenario for the neutron and Raman resonances in a d-wave superconductor.

Original languageEnglish (US)
Article number224431
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number22
StatePublished - Jun 1 2005
Externally publishedYes


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