Friday, March 29, 2013

1303.7188 (Sachin Gupta et al.)

Observation of giant reversible magnetocaloric effect in HoCoSi    [PDF]

Sachin Gupta, K. G. Suresh
We report the magnetic and magnetocaloric properties of HoCoSi, which shows first order ferro-para magnetic transition at 14 K. It is found to exhibit a large magnetic entropy change of 13 J/kg K for a field change of 20 kOe, which increases to 20.5 J/kg K at 50 kOe. The refrigerant capacity is found to be 135 and 410 J/kg for 20 and 50 kOe, respectively. The large low-field MCE along with good adiabatic temperature change (~ 3 K) and a large refrigerant capacity makes it a suitable candidate for magnetic refrigeration applications near the temperature regime around 15 K.
View original: http://arxiv.org/abs/1303.7188

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