TY  - JOUR
AU  - Herlitschke, Marcus
AU  - Klobes, B.
AU  - Sergueev, I.
AU  - Hering, P.
AU  - Persson, Jörg
AU  - Hermann, Raphael
TI  - Elasticity and magnetocaloric effect in MnFe$_{4}$Si$_{3}$
JO  - Physical review / B
VL  - 93
IS  - 9
SN  - 2469-9950
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2016-02077
SP  - 094304
PY  - 2016
AB  - The room temperature magnetocaloric material MnFe4Si3 was investigated with nuclear inelastic scattering (NIS) and resonant ultrasound spectroscopy (RUS) at different temperatures and applied magnetic fields in order to assess the influence of the magnetic transition and the magnetocaloric effect on lattice dynamics. The NIS data give access to phonons with energies above 3 meV, whereas RUS probes the elasticity of the material in the MHz frequency range and thus low-energy, ∼ neV, phonon modes. A significant influence of the magnetic transition on the lattice dynamics is observed only in the low-energy, long-wavelength limit. MnFe4Si3 and other compounds in the Mn5−xFexSi3 series were also investigated with vibrating sample magnetometry, resistivity measurements, and Mössbauer spectroscopy in order to study the magnetic transitions and to complement the results obtained on the lattice dynamics
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000372401000002
DO  - DOI:10.1103/PhysRevB.93.094304
UR  - https://juser.fz-juelich.de/record/413854
ER  -