Contact

Dr. Thomas Herrmannsdörfer
Head of department
t.herrmannsdoerferAthzdr.de
Phone: +49 351 260 - 3320
Fax: 13320, 3531

Magnetic Phenomena in Condensed Matter

HIBEF YBCO crystal gif

HIBEF YBCO crystal gif

Foto: Carsten Baehtz

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Many key technologies of today's society rely on functional materials with properties tailored to their specific roles. The basis for such optimization is an exact knowledge of the relationships between structure and physical properties in these novel materials. However, not all physical effects are yet understood and open questions still remain about the behavior of different material groups under strong magnetic fields. In the field of correlated electron systems, for example, superconductivity is clarified, but the question arises as to whether and at which field strengths the electron Cooper pairs, which are responsible for this effect, separate again. Another issue is Shubnikov-de Haas oscillations which occur at low temperatures and strong magnetic field and cause periodic changes of the electrical conductivity.

These relationships are at the center of many investigations, which mostly use static magnetic fields of up to 20 Tesla at third generation synchrotrons. Even stronger fields can be produced with pulsed systems, where the maximum field strength is achieved only for a fraction of a second. The short lifetime of the high magnetic field requires a fast measurement and thus a high time resolution. The European XFEL is therefore the best analytical tool for this prupose, with its extremely high brilliance and exceptional time structure. Within the framework of the HIBEF user consortium, an experimental setup for investigation of crystal structures in a pulsed magnetic field of up to 60 Tesla is foreseen. The combination of this most powerful X-ray source and such high magnetic fields will be unique worldwide.

Further details can be found here.


Contact

Dr. Thomas Herrmannsdörfer
Head of department
t.herrmannsdoerferAthzdr.de
Phone: +49 351 260 - 3320
Fax: 13320, 3531