TY - JOUR
T1 - Raman resonance in spin-S two-leg spin-ladder systems
AU - Donkov, A.
AU - Chubukov, A. V.
PY - 2005/6/1
Y1 - 2005/6/1
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.71.224431
DO - 10.1103/PhysRevB.71.224431
M3 - Article
AN - SCOPUS:28344434340
VL - 71
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 22
M1 - 224431
ER -