Reduction in hysteresis losses and large magnetic entropy change in the B-doped La (Fe,Si) 13 compounds

Jun Shen*, Fang Wang, Jin Liang Zhao, Jian Feng Wu, Mao Qiong Gong, Feng Xia Hu, Yang Xian Li, Ji Rong Sun, Bao Gen Shen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

The effect of the B-addition on magnetic entropy change Δ S M and hysteresis loss in La (Fe,Si) 13 is studied. The maximal values of Δ SM for LaFe11.9 Si1.1, LaFe11.5 B0.4 Si1.1, LaFe11.5 Si1.5, and LaFe11.0 B0.5 Si1.5 are found to be 27.0, 26.1, 23.7, and 21.2 J/kg K at Curie temperature TC for a field change in 0-5 T, respectively. The maximal hysteresis losses around TC are 43 and 21 J/kg for LaFe11.9 Si1.1 and LaFe11.5 Si1.5, respectively, while almost no magnetic hysteresis is observed for the B-doped compounds. Our result reveals that a large Δ SM and a small hysteresis loss can be simultaneously achieved in NaZn13 -type La (Fe,Si) 13 compounds by the addition of B.

Original languageEnglish
Article number09A909
JournalJournal of Applied Physics
Volume107
Issue number9
DOIs
Publication statusPublished - 1 May 2010
Externally publishedYes

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