The magnetic field influence on magnetostructural phase transition in Ni2.19Mn0.81Ga

D. A. Filippov; V. V. Khovailo; V. V. Koledov; E. P. Krasnoperov; R. Z. Levitin; V. G. Shavrov; T. Takagi

doi:10.1016/S0304-8853(02)01126-5

paper

The magnetic field influence on magnetostructural phase transition in Ni2.19Mn0.81Ga

arXiv:cond-mat/0303187 · doi:10.1016/S0304-8853(02)01126-5

Abstract

Magnetic properties of a polycrystalline alloy Ni $_{2.19}$ Mn $_{0.81}$ Ga, which undergoes a first-order magnetostructural phase transition from cubic paramagnetic to tetragonal ferromagnetic phase, are studied. Hysteretic behavior of isothermal magnetization $M (H)$ has been observed in a temperature interval of the magnetostructural transition in magnetic fields from 20 to 100 kOe. Temperature dependencies of magnetization $M$ , measured in magnetic fields $H = 400$ and 60 kOe, indicate that the temperature of the magnetostructural transition increases with increasing magnetic field.

Presented at the Second Moscow International Symposium on Magnetism (Moscow-2002)