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

M. Ghorbani Zavareh, Y. Skourski, K. P. Skokov, D. Yu. Karpenkov, L. Zvyagina, A. Waske, D. Haskel, M. Zhernenkov, J. Wosnitza, O. Gutfleisch
2017 Physical Review Applied  
We report on magnetization, magnetostriction, and magnetocaloric-effect measurements of polycrystalline LaFe11.74Co0.13Si1.13 and LaFe11.21Co0.65Si1.11performed in both pulsed and static magnetic fields. Although the two compounds behave rather differently at low fields (∼ 5 Tesla), they show quite similar values of the magnetocaloric effect, namely a temperature increases of about 20 K at high fields (50-60 Tesla). The magnetostriction and magnetization also reach very similar values here. We
more » ... ar values here. We were able to quantify the magnetoelastic coupling and, based on that, applied the Bean-Rodbell criterion distinguishing first-and second-order transitions.
doi:10.1103/physrevapplied.8.014037 fatcat:rlp2fazgqfcube3cdlbaglifrm