| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Current Trends in Magnetocaloric Materials: An FMD Symposium in Honor of Ekkes Brueck
|
| Presentation Title |
Structure, Magnetisim and Spin Dynamics of Magnetocaloric Mn5-xFexSi3 Compounds |
| Author(s) |
Karen Friese, Nikolaos Biniskos, Nour Maraytta, Paul Hering, Yuri Skourski, Andrzej Grzechnik, Stephane Raymond, Joerg Voigt, Thomas Brueckel, Karin Schmalzl |
| On-Site Speaker (Planned) |
Karen Friese |
| Abstract Scope |
We extensively studied the structure, magnetism, magnetocaloric effect and spin dynamics in the Mn5-xFexSi3 series of compounds [1-3]. While the magnetocaloric effect is moderate for these compounds, they are composed of abundant and non-toxic elements and can be grown as large single crystals. This allowed us to perform direction-dependent magnetization measurements in static and pulsed magnetic fields and to charatcerize the crystal and magnetic structures using single crystal x-ray and neutron diffraction experiments. In addition, inelastic neutron scattering studies of the spin and lattice dynamics on these materials give insight into the microscopic mechanism of the MCE.
[1] P. Hering et al; Chemistry of Materials 27 (2015), 7128
[2] N. Biniskos et al; Physical Review B 96 (2017), 104407
[3] N. Maraytta et.al; J. Alloys Compds. 805 (2019), 1161 |
| Proceedings Inclusion? |
Undecided |