Magnetocaloric effect and critical behavior in Gd54Ho6Co25 Al14Si amorphous ribbons

Author

Wang, F. ; Feng, T. ; Sun, R. ; Yu, S. ; Wang, J.

Author_Institution

Sch. of Mater. Sci. & Enigeering, NingBo Univ. of Technol., Ningbo, China

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

It has been found that rare earth based metallic glasses manifested large magetocaloric effect over much wider temperature range than most of the crystalline materials. It was mainly attributed to their unique microstructure-a long range disorder and a short range order. In this work, we investigated the magnetocaloric effect in Gd₅₄Ho₆Co₂₅Al₁₄Si amorphous ribbons. A large magnetic entropy change and a relative high refrigerant capacity were observed. The critical behavior was studied near the phase transition temperature.

Keywords

aluminium compounds; amorphous magnetic materials; cobalt compounds; gadolinium compounds; holmium compounds; magnetocaloric effects; metallic glasses; Gd₅₄Ho₆Co₂₅Al₁₄Si; amorphous ribbons; critical behavior; long range disorder; magnetic entropy change; magnetocaloric effect; metallic glasses; microstructure; refrigerant capacity; short range order; Amorphous magnetic materials; Entropy; Magnetic field measurement; Magnetometers; Refrigerants; Temperature dependence; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7156571

Filename

7156571