Direct Measurement of the Magnetocaloric Effect in La(Fe,Si,Co)(13) Compounds 
in Pulsed Magnetic Fields

Ghorbani Zavareh, M.; Skourski, Y.; Skokov, K. P.; Karpenkov, D. Yu.; Zvyagina, L.; Waske, A.; Haskel, D.; Zhernenkov, M.; Wosnitza, J.; Gutfleisch, O.

doi:10.1103/PhysRevApplied.8.014037

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Direct Measurement of the Magnetocaloric Effect in La(Fe,Si,Co)(13) Compounds in Pulsed Magnetic Fields

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Ghorbani Zavareh, M.
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Ghorbani Zavareh, M., Skourski, Y., Skokov, K. P., Karpenkov, D. Y., Zvyagina, L., Waske, A., et al. (2017). Direct Measurement of the Magnetocaloric Effect in La(Fe,Si,Co)(13) Compounds in Pulsed Magnetic Fields. Physical Review Applied, 8(1): 014037, pp. 1-9. doi:10.1103/PhysRevApplied.8.014037.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-CA55-E

Abstract

We report on magnetization, magnetostriction, and magnetocaloric-effect measurements of polycrystal-line LaFe11.74Co0.13Si1.13 and LaFe11.21Co0.65Si1.11 performed in both pulsed and static magnetic fields. Although the two compounds behave rather differently at low fields (similar to 5 T), they show quite similar values of the magnetocaloric effect, namely a temperature increases of about 20 K at high fields (50-60 T). The magnetostriction and magnetization also reach very similar values here. We are able to quantify the magnetoelastic coupling and, based on that, apply the Bean-Rodbell criterion distinguishing first- and second-order transitions.