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JOURNAL OF APPLIED PHYSICS
Volume 103, Issue 7, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.2835688
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The influence of the partial substitution of B by Ge on the magnetocaloric response of Fe78Co5Zr6B10Cu1 is studied. Ge addition produces a reduction in the temperature at which the peak entropy change takes place, as well as a slight decrease in the magnitude of the peak, vertical bar Delta S-M(pk)vertical bar. The refrigerant capacity, RC, and its field dependence is also analyzed: although Ge addition increases RC of the Co-containing alloy, the largest RC value corresponds to the Co- and Ge-free alloy. This will be discussed on the basis of the recently proposed universal curve for the magnetic entropy change, which is also followed by the FeZrBCu(Co,Ge) alloy series. (C) 2008 American Institute of Physics.
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