Large magnetic entropy and electron-phonon coupling in Gd-based metallic glass

Abstract

We study the magnetic entropy behavior in Gd 55 Al 20 Ni 12 Co 10 Mn 3 metallic glass by magnetic susceptibility, resistivity, and specific heat at low temperatures. The Gd-based metallic glass shows metallic behavior, and a ferromagnetic to paramagnetic transition at 106 K. The ferromagnetic order assists the electron-phonon coupling, which induces the large excess magnetic entropy below Curie temperature in the Gd-based metallic glass. The results are important to understand the electron-phonon coupling behavior in disordered alloys. V C 2012 American Institute of Physics. [http://dx

Improving mechanical and magnetocaloric responses of amorphous melt-extracted Gd-based microwires via nanocrystallization

“…compounds [1,[6][7][8][9], has proven to be useful for improving the MCE while reducing the material cost significantly.…”