Abstract
The second-order anisotropy constant K2 in polycrystalline Gd5Si2Ge2 giant magnetocaloric material was measured as a function of temperature by the modi ed singular point detection technique. Although the structural, electrical, thermal, magnetic and magnetocaloric properties of the Gd5Si2Ge2 have been rather well investigated experimentally, magnetic anisotropy of this system is almost unknown. The singularity indicating the anisotropy eld was determined analyzing ac susceptibility data taking into account several features of the magnetization curve. The temperature dependence of the anisotropy elds was measured from 4.2 K up to the Curie temperature. The observed relationship between K2(T )/K2(0) and magnetization M(T )/M(0) was explained assuming dipolar origin of magnetic anisotropy of Gd5Si2Ge2 compound.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
