Lattice and magnetic dynamics in Magneto-Caloric MnFe4Si3
We propose to investigate the lattice and magnetic dynamics in Magneto-Caloric MnFe4Si3. A large MCE in often observed when the magnetic phase transition is combined with changes of the underlying lattice, so that not only the magnetic but also the lattice entropy is changed. Using time-of-flight spectroscopy we aim for the extraction of the magnetic and the lattice entropy in MnFe4Si3 by combination with data from inelastic nuclear scattering and a non-magnetic reference sample. We intend to measure the temperature dependence in the magnetically ordered state and in the paramagnetic state. These results will provide a better understanding of the MCE in MnFe4Si3, which is a potential candidate for an abundant and non-toxic magnetic refrigerant.
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VOIGT Joerg; BRUECKEL Thomas; Karen Friese; GOTTSCHLICH Michael; HERLITSCHKE Marcus; HERMANN Raphael; KLOBES Benedikt; Nemkovski; ORECCHINI Andrea and SCHMALZL Karin. (2013). Lattice and magnetic dynamics in Magneto-Caloric MnFe4Si3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1318
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