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Adiabatic temperature change of polycrystalline Gd as a function of initial temperature for three indicated values of final magnetic field. Filled circles: raw data for the given external fields. Dashed line: corrected data, referred to the same values of constant internal field.
(Color online) Maximum adiabatic temperature change of Gd as a function of external (filled symbols) or internal (open symbols) magnetic field. Different symbol shapes correspond to different orientations of the sample.
(Color online) Corrected for demagnetization data of Fig. 2 for Gd plotted against H 2/3 as well as similar data for LaFe11.2Si1.8, Nd2Fe17, and Y2Fe17. Solid curves are fits to Eq. (2), and the dashed line is a fit to Eq. (6).
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