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Magnetic excitations in SrCu2O3: a Raman scattering study
- Source :
- Phys. Rev. B 67, 052403 (2003)
- Publication Year :
- 2008
-
Abstract
- We investigated temperature dependent Raman spectra of the one-dimensional spin-ladder compound SrCu2O3. At low temperatures a two-magnon peak is identified at 3160+/-10 cm^(-1) and its temperature dependence analyzed in terms of a thermal expansion model. We find that the two-magnon peak position must include a cyclic ring exchange of J_cycl/J_perp=0.09-0.25 with a coupling constant along the rungs of J_perp approx. 1215 cm^(-1) (1750 K) in order to be consistent with other experiments and theoretical results.<br />Comment: 4 pages, 3 figures
- Subjects :
- Condensed Matter - Strongly Correlated Electrons
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 67, 052403 (2003)
- Publication Type :
- Report
- Accession number :
- edsarx.0801.1303
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.67.052403