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Some antiferromagnetic resonance measurements in $\alpha$-Fe2O3
| Content Provider | Scilit |
|---|---|
| Author | Elliston, P. R. Troup, G. J. |
| Copyright Year | 1968 |
| Description | Journal: Journal of Physics C: Solid State Physics Millimetre wave antiferromagnetic resonance experiments have been made in $α-Fe_{2}O_{3}$ using both d.c. and pulsed magnetic fields. Both the weak-ferromagnetic modes above the Morin transition temperature and the usual low-temperature antiferromagnetic resonance were examined. The theoretical expression for the frequency dependence of the low-frequency weak-ferromagnetic mode has been verified up to 40 kG. The angular dependence of this mode at 687 Gc/s shows a departure from theory, however, although lower-frequency measurements do not. The angular dependence of the high-frequency weak-ferromagnetic mode observed at 142 Gc/s and 273 °K is in satisfactory agreement with theory. The low-temperature antiferromagnetic resonance for $H_{0}$ along the c axis is similar to previous results; however, off-axis the resonance is observed to greater angles than expected, possibly as a result of a non-zero canting field when the spins deviate from the c axis. Near the Morin transition temperature metamagnetic behaviour is observed and the results are discussed with reference to previous measurements. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3719/1/1/320/pdf |
| Ending Page | 178 |
| Page Count | 10 |
| Starting Page | 169 |
| ISSN | 00223719 |
| DOI | 10.1088/0022-3719/1/1/320 |
| Journal | Journal of Physics C: Solid State Physics |
| Issue Number | 1 |
| Volume Number | 1 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1968-02-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics C: Solid State Physics Applied Physics Condensed Matter Physics Magnetic Field Low Frequency High Frequency |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Condensed Matter Physics Engineering |
