SKM 2023 – scientific programme
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MA: Fachverband Magnetismus
MA 23: Poster Magnetism I
MA 23.18: Poster
Tuesday, March 28, 2023, 17:00–19:00, P1
Magnetocaloric materials for the liquefaction of hydrogen — •Tino Gottschall1, Eduard Bykov1,2, Marc Strassheim1,2, Timo Niehoff1,2, Catalina Salazar-Mejia1, and J. Wosnitza1,2 — 1Dresden High Magnetic Field Laboratory (HLD-EMFL), HZDR, Dresden, Germany — 2Institut für Festkörper- und Materialphysik, TU Dresden, Germany
Magnetic cooling is a refrigeration technique that is based on the so-called magnetocaloric effect, the change of temperature caused by a magnetic field. It can be utilized to construct environmentally friendly cooling devices, air conditioners, and heat pumps. Originally, magnetic cooling was used to achieve ultra-low temperatures by adiabatic demagnetization of magnetic salts. Recently, low temperatures have once again become the focus of attention as an area of application for magnetocaloric cooling namely for hydrogen liquefaction. In this work, we would like to discuss our current progress for the creation of a materials library for cryogenic applications. The basis for this is our characterization infrastructure for materials research at the Dresden High Magnetic Field Laboratory in static and pulsed fields. With this, we aim to understand these materials better to further optimize their magnetic cooling performance near the boiling temperature of hydrogen.