ISSN:
1434-6036
Keywords:
PACS. 75.30.Sg Magnetocaloric effect, magnetic cooling – 81.30.Kf Martensitic transformations – 75.50.Cc Other ferromagnetic metals and alloys – 75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We have studied the isothermal entropy change around a first-order structural transformation and in correspondence to the second-order Curie transition in the ferromagnetic Heusler alloy Ni2.15Mn0.85Ga. The results have been compared with those obtained for the composition Ni2.19Mn0.81Ga, in which the martensitic structural transformation and the magnetic transition occur simultaneously. With a magnetic field span from 0 to 1.6 T, the magnetic entropy change reaches the value of 20 J/kg K when transitions are co-occurring, while 5 J/kg K is found when the only structural transition occurs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2003-00102-y
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