Magnetization measurements up to high magnetic fields of 56 T applied with a pulsed magnet were carried out for x = 14.0 and 15.6 in Ni50Mn 50-xInx alloys. Metamagnetic behaviour from the nonmagnetic martensite phase to the ferromagnetic parent phase was observed even at x = 14.0, where no ferromagnetic phase exists in the entire temperature range under a low magnetic field. The spontaneous magnetization Is for x = 14.0 and 15.6 was deduced to be about 6.4 and 6.0 μB/f.u., respectively, and the Is increased with decreasing In concentration. This result strongly suggests that the magnetic moment of Mn atoms substituted at the In sites couples ferromagnetically to the magnetic moment of Mn atoms at the Mn sites.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Acoustics and Ultrasonics
- Surfaces, Coatings and Films