Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

2 Publications
THz-range free-electron laser ESR spectroscopy: techniques and applications in high magnetic fields
Ozerov, M.; Cizmar, E.; Kamenskyi, D.; Zherlitsyn, S.; Herrmannsdörfer, T.; Wosnitza, J.; Zvyagin, S. A.;
The successful use of picosecond-pulse free-electron-laser (FEL) radiation for the continuous-wave THz-range electron spin resonance (ESR) spectroscopy has been demonstrated. The unique combination of two linac-based FELs (covering the wavelength range of 4 - 250 μm) with high magnetic fields at the Research Center Dresden-Rossendorf (FZD) allows for tunable-frequency ESR spectroscopy in an extraordinary broad frequency range of 1.2 - 75 THz in magnetic fields up to ~70 T. The new approach is of particular importance for studying magnetic excitations in materials exhibiting field-induced phenomena (including magnetic phase transitions) and in spin systems with a large zero-field splitting. The performance of the spectrometer is illustrated with ESR spectra obtained in the low-dimensional organic material (C6H9N2)CuCl3 and the multiferroic compound YMnO3 This work was made in collaboration with R. Wünsch, W. Seidel, H.D. Zhou, C. Wiebe.
  • Poster
    DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)2009, 22.-27.03.2009, Dresden, Deutschland
  • Poster
    Terahertz spectroscopy and its high-field applications & EuroMagNET II user meeting, 14.-16.06.2010, Dresden, Deutschland

Publ.-Id: 12650 - Permalink