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Magnetic Excitations in Quasi-two-dimensional Spin-peierls Systems
| Content Provider | Semantic Scholar |
|---|---|
| Author | Brenig, Wolfram |
| Copyright Year | 1997 |
| Abstract | A study is presented of a two-dimensional frustrated and dimerized quantum spin-system which models the effect of inter-chain coupling in a spin-Peierls compound. Employing a bond-boson method to account for quantum disorder in the ground state the elementary excitations are evaluated in terms of gapful triplet modes. Results for the ground state energy and the spin gap are discussed. The triplet dispersion is found to be in excellent agreement with inelastic neutron scattering data in the dimerized phase of the spin-Peierls compound CuGeO_3. Moreover, consistent with these neutron scattering experiments, the low-temperature dynamic structure factor exhibits a high-energy continuum split off from the elementary triplet mode. |
| Starting Page | 14441 |
| Ending Page | 14448 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevB.56.14441 |
| Volume Number | 56 |
| Alternate Webpage(s) | https://arxiv.org/pdf/cond-mat/9705193v1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevB.56.14441 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
