Magnetic anisotropy and magnetoelastic properties of SmFe11Ti

We investigated the specific magnetization sigma(T, B), torque moments L(phi), Young's modulus E(T), internal friction Q(-1)(T), and magnetostriction lambda(B) of a single crystal and polycrystalline samples, of the SmFe11Ti compound, in the temperature region 77-700 K in magnetic fields up to 1.6 T. Below the Curie temperature (T-c=600 K) this compound was found to be a uniaxial highly anisotropic ferromagnet with a saturation magnetization sigma(s)=126 G.cm(3) g(-1) and the uniaxial anisotropy constant K-1 =4.2.10(7)erg/cm(3) at 300 K. The temperature dependence of Young's modulus shows typical metallic behavior. It was found that the magnetoelastic energy of SmFe11Ti is much smaller than the magnetocrystalline anisotropy energy. (C) 1997 Elsevier Science S.A.