THz spectroscopy in the pseudo-Kagome system Cu3Bi(SeO3)2O2Br
| Autor: | Wang, Zhe, Schmidt, M., Goncharov, Y., Tsurkan, V., von Nidda, H. -A. Krug, Loidl, A., Deisenhofer, J. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 86, 174411 (2012) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.86.174411 |
| Popis: | Terahertz (THz) transmission spectra have been measured as function of temperature and magnetic field on single crystals of Cu3Bi(SeO3)2O2Br. In the time-domain THz spectra without magnetic field, two resonance absorptions are observed below the magnetic ordering temperature T_N~27.4 K. The corresponding resonance frequencies increase with decreasing temperature and reach energies of 1.28 and 1.23 meV at 3.5 K. Multi-frequency electron spin resonance transmission spectra as a function of applied magnetic field show the field dependence of four magnetic resonance modes, which can be modeled as a ferromagnetic resonance including demagnetization and anisotropy effects. Comment: 5 pages, 3 figures. All comments are welcome and appreciated |
| Databáze: | arXiv |
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