We report on the existence of acoustic emission during the paramagnetic-monoclinic <-> ferromagnetic-orthorhombic magnetostructural phase transition in the giant magnetocaloric Gd5Si2Ge2 compound. The transition kinetics have been analyzed from the detected acoustic signals. It is shown that this transition proceeds by avalanches between metastable states.
|Number of pages||5|
|Journal||Physical Review B Condensed Matter and Materials Physics|
|Publication status||Published - Jan 2006|