Archive – Functional Materials – TU Darmstadt

Archive

Picture: https://doi.org/10.1063/5.0020755

Picture: https://doi.org/10.1063/5.0020755

Giant caloric effects based on the combination of magnetic field and uniaxial stress

2020/12/04

New publication

The increasing demand for artificial cold and the ever-growing importance of climate protection call for new energy-efficient and environmentally-friendly alternatives to the conventionally used vapor-compression technology. The most promising candidate is solid-state caloric cooling which is based on the thermal response of a material to an external stimulus such as magnetic field, electric field, uniaxial stress or hydrostatic pressure. In our joint work with researchers from Helmholtz-Zentrum Dresden-Rossendorf and Universidad de Barcelona we demonstrate that the combination of more than one external stimulus can largely outperform the single caloric response.
Multicaloric effects in Metamagnetic Heusler Ni-Mn-In under uniaxial stress and magnetic field

2020/12/03

New publication
Picture: https://doi.org/10.1103/PhysRevMaterials.4.111401

Picture: https://doi.org/10.1103/PhysRevMaterials.4.111401

Influence of the martensitic transformation kinetics on the magnetocaloric effect in Ni-Mn-In

2020/12/01

New publication

L. Pfeuffer, T. Gottschall, T. Faske, A. Taubel, F. Scheibel, A. Y. Karpenkov, S. Ener, K. P. Skokov and O. Gutfleisch Phys. Rev. Materials 4, 111401 (2020) https://doi.org/10.1103/PhysRevMaterials.4.111401
Recently published

2020/11/18

Tailoring magnetocaloric effect in all-d-metal Ni-Co-Mn-Ti Heusler alloys: a combined experimental and theoretical study

Novel Ni-Co-Mn-Ti all-d-metal Heusler alloys are exciting due to large multicaloric effects combined with enhanced mechanical properties. We show that an optimized heat treatment leads to very sharp phase transitions in bulk alloys with large isothermal entropy changes.
New Max Planck Research Group headed by Prof. Oliver Gutfleisch to study magnets as key materials for green energy

2020/10/22

New collaboration between TU Darmstadt and Max-Planck-Institut für Eisenforschung (MPIE)
Picture: Functional Materials

Picture: Functional Materials

Functional Materials for TU charity run

2020/10/21

Running individually – donating united

Funded by the Material Science Professors, also runners and walkers from Functional Materials ran to collect money for charity. The donations will go to students facing financial distress due to the coronavirus pandemic.
Mask Production

2020/10/21

Masken gegen Corona und für gute Laune

Wie kann man Infektionen am Arbeitsplatz vermeiden? Ganz einfach, die AHA+L Regeln einhalten.
Recently published

2020/10/12

Giant voltage-induced modification of magnetism in micron-scale ferromagnetic metals by hydrogen charging

Xinglong Ye, Harish K. Singh, Hongbin Zhang, Holger Geßwein, Mohammed Reda Chellali, Ralf Witte, Alan Molinari, Konstantin Skokov, Oliver Gutfleisch, Horst Hahn & Robert Kruk Nature Communications, 11 , 4849 (2020) https://doi.org/10.1038/s41467-020-18552-z
Recently published

2020/10/12

Nanocrystalline Sm-based 1:12 magnets

A.M. Schönhöbel, R. Madugundo, J.M. Barandiarán, G.C. Hadjipanayis, D. Palanisamy, T. Schwarz, B. Gault, D. Raabe, K. Skokov, O. Gutfleisch, J. Fischbacher, T. Schrefl Acta Materialia 200 , 652 (2020) https://doi.org/10.1016/j.actamat.2020.08.075
Recently published

2020/10/12

Editor´s choice: L10 rare-earth-free permanent magnets: The effects of twinning versus dislocations in Mn-Al magnets

Yuxiao Jia, Yuye Wu, Shuang Zhao, Shulan Zuo, Konstantin P. Skokov, Oliver Gutfleisch, Chengbao Jiang, and Huibin Xu Phys. Rev. Materials 4, 094402 (2020) DOI: https://doi.org/10.1103/PhysRevMaterials.4.094402