Magnetic Compton scattering study of Ni_2Mn_(1.4)Sn_(0.6) shape memory alloy

摘要

Spin momentum density in Ni_2Mn_(1.4)Sn_(0.6) shape memory alloy has been measured using magnetic Compton scattering technique. The experiment has been performed using 182 keV circularly polarized synchrotron radiation at temperature 10 K at SPring-8, Japan. Experimental magnetic Compton profile has been decomposed to determine the site specific magnetic moments, where the magnetic moment at Mn site was found to be dominating. It is seen that the total spin moment in present non-stoichiometric alloy is smaller than that of stoichiometric Ni_2MnSn.