Giant magnetocaloric effect in nanostructured Fe-Co-P amorphous alloys enabled through pulse electrodeposition

Junye Cheng, Tian Li, Sana Ullah, Feng Luo, Hao Wang, Ming Yan, Guangping Zheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

In this work, amorphous Fe-Co-P films prepared by electrodeposition are found to exhibit dense microstructures with amorphous grains. Through a pulse electrodeposition synthesis route, complex microstructures containing nano-sized grains are obtained in the amorphous alloy films. The nanostructured Fe-Co-P amorphous alloys show superior soft magnetic and magnetocaloric properties as compared with those of other iron-based soft magnetic amorphous alloys reported to date. The coercive field of samples can be as small as 1.6 Oe at room temperature. The magnetocaloric effect (MCE) of the ternary amorphous alloys has been investigated by evaluating the magnetic entropy changes, |ΔSM |, from their temperature-dependent magnetization behaviors. The |ΔSM| values are as high as 1.846 J kg-1 K-1 with an applied magnetic field of 10 kOe. With a temperature span of 90 K, the refrigerant capacity of samples can be as high as 118.64 J kg-1. The nanostructure enabled giant MCE in Fe-Co-P amorphous alloys is discussed.

Original languageEnglish
Article number385704
JournalNanotechnology
Volume31
Issue number38
DOIs
Publication statusE-pub ahead of print - Jul 2020

Keywords

  • amorphous alloys
  • electrodeposition
  • magnetocaloric effects
  • nanostructured
  • soft magnetic

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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