Loading...
Please wait, while we are loading the content...
Similar Documents
Neutron scattering investigation of magnetic excitations in $CoCl_{2}$
| Content Provider | Scilit |
|---|---|
| Author | Hutchings, M. T. |
| Copyright Year | 1973 |
| Description | Journal: Journal of Physics C: Solid State Physics Neutron scattering has been used to investigate the energy dispersion relation of spin waves in $CoCl_{2}$ at temperatures between 4.4 K and 34 K. $CoCl_{2}$ orders antiferromagnetically at $T_{N}$=24.9 K with the $Co^{2+}$ spins lying within ferromagnetic planes which are antiferromagnetically stacked along the hexagonal c axis. The interplanar exchange interactions are much weaker than those within the planes, giving rise to the 'metamagnetic' property of ferromagnetic saturation in relatively weak magnetic fields, and suggesting that above $T_{N}$ there could be correlations between spins appropriate to a two-dimensional ferromagnet. The observed spin waves at low temperature indeed only exhibit strong dispersion within the basal plane and measurement of this dispersion enables an accurate value for the nearest-neighbour exchange constant to be determined. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3719/6/21/018/pdf |
| Ending Page | 3155 |
| Page Count | 13 |
| Starting Page | 3143 |
| ISSN | 00223719 |
| DOI | 10.1088/0022-3719/6/21/018 |
| Journal | Journal of Physics C: Solid State Physics |
| Issue Number | 21 |
| Volume Number | 6 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1973-10-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics C: Solid State Physics Condensed Matter Physics Dispersion Relation Neutron Scattering Magnetic Field Spin Wave Exchange Interaction |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Condensed Matter Physics Engineering |
