| LOCAL CONTACT |
Hans Engelkamp,
Peter Christianen |
Sergei Zvyagin |
| FIELD RANGE |
Up to 33 T DC |
Up to 60/70 T |
| SPECTRAL RANGE |
Different Free Electron Lasers
FELIX: 2-120 THz,
FLARE: 0.25-3 THz
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ELBE:1.2 – 9 THz |
| TEMPERATURE RANGE |
Temperature range depends on sample holder and cryostat In general: 1.5 ... 290 K |
2 – 300 K |
| SAMPLE SIZE |
< 5 mm lateral size, ~ 1 mm or less height |
Typically 3x3x1 mm |
| SENSITIVITY |
Spectral resolution depends on the free electron laser used. |
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| TYPICAL EXPERIMENT |
Transmission experiment (Electron spin resonance or cyclotron resonance).
Electrically detected magnetic resonance
Optically detected magnetic resonance
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Electron Spin Resonance, Cyclotron Resonance
©HZDR/André Wirsig |
| SAMPLE HOLDER |
Faraday configuration |
Faraday configuration |
| SAMPLE ENVIRONMENT |
He4 bath cryostat (cold finger of exchange gas) |
He4 bath cryostat |
| PUBLICATIONS |
1. A THz spectrometer combining the free electron laser FLARE with 33 T magnetic fields. Applied Physics Letters 110 (2017)
2. Magnetoquantum Oscillations at THz Frequencies in InSb. Physical Review Letters 119 (2017)
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1. F. Esser et al., Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy Appl. Phys. Lett. 107, 062103 (2015)
2. M. Ozerov et al., Establishing the fundamental magnetic interactions in the chiral skyrmionic Mott insulator Cu2OSeO3 by terahertz electron spin resonance Physical Review Letters 113, 157205 (2014)
3. A.-L. Barra et al., Resonance THz spectroscopy in high magnetic fields. Comptes Rendus Physique, 14, 106 (2013)
4. S.A. Zvyagin et al., Terahertz-range free-electron laser electron spin resonance spectroscopy: Techniques and applications in high magnetic fields. Rev. Scient. Instr. 80, 073102 (2009)
5. O. Drachenko et al., High-field splitting of the cyclotron resonance absorption in strained p-InGaAs/GaAs quantum wells, Phys. Rev. B 79, 073301 (2009) |
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