VEKMAG
VEKMAG
VEKMAG is a Vector Superconducting Magnet instrument designed for XAS/XMCD measurements, for resonant and-off resonant soft X-ray scattering methods, as well as for time resolved ferromagnetic resonance using XMCD, in high magnetic fields and for a temperature range of 2 K - 500 K. It provides a 9T field in the beam direction, a 2T field in the horizontal plane and a 1T field in the perpendicular direction. A 1T vectorial field can be applied in all directions.
Selected Applications:- Spintronics
- Low dimensional magnetism
- Molecular magnetism
Methods
Remote access
depends on experiment - please discuss with Instrument Scientist
| Beamline data | |
|---|---|
| Energy range | 20 - 1600 eV |
| Energy resolution | variable |
| Flux | ~5 x 109 photons/sec |
| Polarisation | Circular, Horizontal |
| Focus size (hor. x vert.) | Variable between • 60 µm x 50 µm • 800 µm x 800 µm |
| Phone | +49 (0)30 8062 - 14834 |
| More details | PM2-VEKMAG |
| Station data | |
| Temperature range | 0.325 - 500 K |
| Pressure range | UHV |
| Detector | Photodiodes: FY, transmission drain current: TEY Large area detectors: 4kCCD , 2kCCD |
| Manipulators | • Low Temperature - Variable Temperature Insert (LT-VTI) for 2 - 350 K • Ferromagnetic resonance - Variable Temperature Insert (FMR-VTI) for 8 - 500 K • Very Low Temperature - Variable Temperature Insert (VLT-VTI) for 325 mK - 350 K |
| Sample holder compatibility | Compatible with Omicron plates |
| Additional equipment | Single axis magnetic fields:
• 9 T along the beam direction • 2T perpendicular to the beam direction, in the horizontal plane • 1T along the vertical direction. Vectorial magnetic fields: • 2T in the horizontal plane • 1T in all directions • Microwave excitation capability (XFMR) • Electrical transport capability |
VEKMAG is a Vector Superconducting Magnet station which is being jointly developed by Regensburg University, Free University Berlin, Ruhr University Bochum, and Helmholtz Zentrum Berlin. The instrument is located at Helmholtz Zentrum Berlin, in the experimental hall at the PM2 beamline of the synchrotron facility BESSY II.
The instrument is designed for XAS/XMCD measurements, for resonant and-off resonant soft X-ray scattering methods, as well as for time resolved ferromagnetic resonance using XMCD, in high magnetic fields and for a temperature range of < 2 K - 500 K. It provides a 9T field in the beam direction, a 2T field in the horizontal plane and a 1T field in the perpendicular direction. A 1T vectorial field can be applied in all directions. The home beamline is located at the PM2 bending magnet at BESSY II.
Further info:
http://www.helmholtz-berlin.de/pubbin/news_seite?nid=14120&sprache=en
List Publications
- K. Chen et al., Nanoscale 12, 18137 (2020)
- C. Luo, H. Ryll, C. H. Back, and F. Radu, Sci Rep 9, 18169 (2019)
- N. Y. Schmidt et al., Phys. Rev. B 100, 064428 (2019)
- Phys. Rev. Lett., 122, 037601 (2019)
- A. Alhassanat et al., Phys. Rev. B 98, 064428 (2018)
- L. Kipgen et al., Nature Communications 9, 2984 (2018)
- R. Aeschlimann et al., Adv. Mater. 2018, 1707489 (2018)
- A. A. Sapozhnik et al., Phys. Rev. B 97, 184416 (2018)
- B. Hebler et al., Phys. Rev. B 95, 104410 (2017)
- T. Noll and F. Radu, The Mechanics of the VEKMAG experiment, Proceedings of MEDSI2016, 370 (2017)