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Spin waves in multiple-spin-density-wave systems
| Content Provider | Scilit |
|---|---|
| Author | Long, M. W. Yeung, W. |
| Copyright Year | 1986 |
| Description | Journal: Journal of Physics C: Solid State Physics The spin wave modes in an anisotropic Heisenberg model are investigated for a triple-spin-density-wave (TSDW) ground state in a FCC lattice. Explicit solutions are obtained in the diagonal-exchange regime in all directions. The solutions are also given in the (0,0, xi ) and ( xi , xi ,0) directions for the above model including non-diagonal exchange and a crystal-field term. Besides the usual acoustic spin wave modes the authors find a spin wave mode with a dispersion similar to that of a ferromagnetic spin wave. This latter mode couples weakly to neutrons. They obtain qualitatively different results to Jensen and Bak (1981) who appear to drop the off-diagonal-exchange terms. They also compare the results between a TSDW and those due to a distribution of single spin-density waves (SSDW) polarised along each of the axis directions and discuss their effect on width measurements. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3719/19/9/012/pdf |
| Ending Page | 1429 |
| Page Count | 21 |
| Starting Page | 1409 |
| ISSN | 00223719 |
| DOI | 10.1088/0022-3719/19/9/012 |
| Journal | Journal of Physics C: Solid State Physics |
| Issue Number | 9 |
| Volume Number | 19 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1986-03-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics C: Solid State Physics Condensed Matter Physics Spin Wave Ground State Heisenberg Model Spin Density Wave |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Condensed Matter Physics Engineering |
