English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this article, our recent progresses about the effects of atomic substitution, magnetic field and temperature on the magnetic and magnetocaloric properties of the LaFe13-xAlx compounds are reviewed. With the increase of aluminum content, the compounds exhibit successively an antiferromagnetic (AFM), a ferromagnetic (FM), and a mictomagnetic state. Furthermore, the AFM coupling of LaFe13-xAlx can be converted to a FM coupling by substituting Si for Al, Co for Fe and magnetic rare-earth R for La, or introducing interstitial C or H atom. However, low doping levels lead to FM clusters embedded in AFM matrix, and the resultant compounds can undergo, under appropriate applied fields, first an AFM-FM and then a FM-AFM phase transition while heated, with significant magnetic relaxation in the vicinity of the transition temperature. The Curie temperature of LaFe13-xAlx can be shifted to room temperature by choosing appropriate contents of Co, C or H, and strong magnetocaloric effect can be obtained around the transition temperature. For example, for the LaFe11.5Al1.5C0.2H1.0 compound, the maximal entropy change reaches 13.8 J/kg K for a field change of 0-5 T, occurring around the room temperature. It is 42% higher than that of Gd and, therefore, this compound is a promising room-temperature magnetic refrigerant.

Magnetic properties and magnetocaloric effects in NaZn13-type La(Fe, Al)13-based compounds

Magnetic properties and magnetocaloric effects in NaZn₁₃-type La(Fe, Al)₁₃-based compounds