Magnetic Phase Transition of Mn1.9Fe0.1Sb0.9Sn0.1

• Published in: IEEE magnetics letters Vol. 9; pp. 1 - 4
• Main Authors: Nwodo, Adline N., Kobayashi, Ryota, Wakamori, Taoto, Matsumoto, Yoshihiro, Mitsui, Yoshifuru, Umetsu, Rie Y., Hiroi, Masahiko, Takahashi, Kohki, Uwatoko, Yoshiya, Koyama, Keiichi
• Format: Journal Article
• Language: English
• Published: IEEE 2018
• Subjects: Compounds; first-order magnetic transition; Iron; Magnetic field measurement; Magnetic hysteresis; Magnetism in solids; Manganese; Saturation magnetization; spin reorientation; Temperature measurement; thermal hysteresis
• ISSN: 1949-307X; 1949-3088
• DOI: 10.1109/LMAG.2017.2768023

The magnetic properties of ferrimagnetic Mn 1.9 Fe 0.1 Sb 0.9 Sn 0.1 with a Cu2Sb-type tetragonal structure were investigated in the temperature range 10 to 360 K and in magnetic fields up to 5 T. The lattice parameters a and c were estimated to be 0.407 and 0.655 nm, respectively, at 293 K. The saturation magnetization at 10 K was 39.1 A·m 2 /kg (1.62 μB per formula unit), which was slightly smaller than the value at 75 K, and the magnetization showed thermal hysteresis between 70 and 230 K. The compound showed a first-order magnetic transition from the ferrimagnetic to a paramagnetic-like state with a thermal hysteresis in the vicinity of 320 K. The results are discussed on the basis of the ferrimagnetic and antiferromagnetic transitions and spin reorientation.