, Volume 26, Issue 1, pp 183-186,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 05 Jul 2012

Specific Heat and Magnetocaloric Effect in Ho-Er-Co Solid Solutions


Specific heat measurements have been performed on polycrystalline HoCo2, ErCo2 and their solid solutions Ho1−x Er x Co2 (0.1≤x≤0.5). These compounds were synthesized using high-purity rare-earth metals and cobalt. X-ray diffraction patterns taken at room temperature reveal that all compounds have the C15 cubic Laves phase structure. Heat capacity measurements have been performed in the temperature range of 2–300 K without magnetic field and in a magnetic field of 1 and 2 T. The magnetocaloric effect has been estimated in terms of isothermal magnetic entropy change for all solid solutions in magnetic fields up to 2 T. The effect of increasing Er amount in Ho1−x Er x Co2 on the magnetic and magnetocaloric properties will be discussed.