VEKMAG

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.

List of publications

Station data
Temperature range	2-500K
Pressure Range	For details contact the station manager.
Detector	Photodiodes, drain current
Manipulators	LT-VTI, FMR-VTI
Sample holder compatibility	For details contact the station manager.
Beamline(s)	PM2-VEKMAG

Methods

XMLD, XMCD, RIXS

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.

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

Temperature range:

-Low Temperature Variable Temperature Insert (LT-VTI) : 2K-350 K

-Ferromagnetic resonance Variable Temperature Insert (FMR-VTI) : 8K-500 K

For the parameters of the beamline see:

http://www.helmholtz-berlin.de/pubbin/igama_output?modus=einzel&sprache=en&gid=1937

Further info:

http://www.helmholtz-berlin.de/pubbin/news_seite?nid=14120&sprache=en

List Publications

S. V. Kozhevnikov et al., Nucl. Instrum. and Meth. A 927, 87 (2019)
J. Tornos et al., Ferroelectric Control of Interface Spin Filtering in Multiferroic Tunnel Junctions, Phys. Rev. Lett., 122, 037601 (2019)
A. Alhassanat et al., Element-specific magnetic properties of mixed 3d-4f metallacrown, Phys. Rev. B 98, 064428 (2018)
L. Kipgen et al., Evolution of cooperativity in the spin transition of an iron(II) complex on a graphite surface, Nature Communications 9, 2984 (2018)
R. Aeschlimann et al., A Living-Dead Magnetic Layer at the Surface of Ferrimagnetic DyTiO3 Thin Films, Adv. Mater. 2018, 1707489 (2018)
A. A. Sapozhnik et al., Experimental determination of exchange constants in antiferromagnetic Mn2Au, Phys. Rev. B 97, 184416 (2018)
B. Hebler et al., Double exchange bias in ferrimagnetic heterostructures, Phys. Rev. B 95, 104410 (2017)
T. Noll and F. Radu, The Mechanics of the VEKMAG experiment, Proceedings of MEDSI2016, 370 (2017)