期刊
APPLIED PHYSICS LETTERS
卷 101, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4738778
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资金
- National Natural Science Foundation of China [50825103]
- Natural Science Foundation of Zhejiang Province [LR12E01001]
Glass-forming ability, spin-glass (SG) behavior, and magnetocaloric effect in Gd55NixAl45-x (x = 15, 20, 25, 30) metallic alloys were investigated. A ferromagnetic SG behavior was observed for glassy ribbons with compositions of x = 15, 20, and 25, but it disappeared for that of x = 30. Furthermore, the maximum magnetic entropy change (-Delta S-m(max)) increased with the increasing Ni/Al-ratio while the decrease of full width at half -Delta S-m(max) was almost negligible. Accordingly, -Delta S-m(max) of 9.25 J kg(-1) K-1, adiabatic temperature change of 4.3 K and refrigeration capacity of 851 J kg(-1) under 50 kOe were obtained for Gd55Ni30Al15 glassy alloy. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738778]
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