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Magnetocaloric effect of Gd–Tb alloys: influence of the sample shape anisotropy

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Abstract

The magnetocaloric effect of Gd1−x Tb x alloys with x=0.00, 0.10, 0.20, 0.25, 0.30 and 0.40 was studied. The magnetic ordering temperatures were determined from the magnetization measurement. The data obtained from magnetization and specific-heat measurements as well as by the direct measurement are well comparable within their experimental errors. The values of ΔT ad are in the proximity of 2.5 K for field change of 1 T and all studied concentrations. The dependence of magnetocaloric effect on the sample shape anisotropy was documented by the magnetization measurement as well as by the direct measurement.

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Authors and Affiliations

  1. Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Prague 2, Czech Republic

    Jiří Kaštil & Pavel Javorský

  2. Institute of Physics ASCR, v.v.i, Na Slovance 2, 182 21, Prague 8, Czech Republic

    Jiří Kamarád & Eva Šantavá

Authors
  1. Jiří Kaštil
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  2. Pavel Javorský
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  3. Jiří Kamarád
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  4. Eva Šantavá
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Correspondence to Jiří Kaštil.

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Kaštil, J., Javorský, P., Kamarád, J. et al. Magnetocaloric effect of Gd–Tb alloys: influence of the sample shape anisotropy. Appl. Phys. A 104, 205–209 (2011). https://doi.org/10.1007/s00339-010-6105-2

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  • DOI: https://doi.org/10.1007/s00339-010-6105-2

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