Large magnetocaloric effect in La(FexSi1−x)13 itinerant-electron metamagnetic compounds

By S. Fujieda, A. Fujita, K. Fukamichi. 2002

478 citations recorded by the source corpus.

The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(FexSi1−x)13 compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad for the compound with x=0.90 are −28 J/kg K and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(FexSi1−x)13 compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/860af86ea4eb7423c40edcf408d887e52631ab8c

Citations in the corpus

• Recent progress in magnetocaloric effect: Mechanisms and potential applications (2012, unknown): “5 Annaorazov et al. (1992); Tishin and Spichkin (2002) w2 Fujieda et al. (2002); Tishin and Spichkin (2002) w2.”