The Forced Magnetostrictions and Magnetic Properties of NiMnX (X = In, Sn) Ferromagnetic Heusler Alloys.

Experimental studies into the forced magnetostriction, magnetization, and temperature dependence of permeability in NiMnIn and NiMnSn ferromagnetic Heusler alloys were performed according to the spin fluctuation theory of itinerant ferromagnetism proposed by Takahashi. We investigated the magnetic field () dependence of magnetization () at the Curie temperature , and at = 4.2 K, which concerns the ground state of the ferromagnetic state.