Magnetocrystalline anisotropy of cementite pseudo single crystal fabricated under a rotating magnetic field

• Published in: Journal of magnetism and magnetic materials Vol. 451; pp. 1 - 4
• Main Authors: Yamamoto, Sukeyoshi, Terai, Tomoyuki, Fukuda, Takashi, Sato, Kazunori, Kakeshita, Tomoyuki, Horii, Shigeru, Ito, Mikio, Yonemura, Mitsuharu
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2018; Elsevier BV
• Subjects: ab-initio calculation; Anisotropy; Axes (reference lines); Cementite; Cements; Hard axis; Magnetic fields; Magnetocrystalline anisotropy; Mechanical properties; Microstructure; Rotation; Single crystals; Magnetocrystalline anisotropy; Hard axis; Cementite; ab-initio calculation
• ISSN: 0304-8853; 1873-4766
• DOI: 10.1016/j.jmmm.2017.10.114

[Display omitted] •The hard and easy axes of the cementite are a-axis and c-axis, respectively.•The observed hard axis is in agreement with that obtained by the an ab initio calculation.•The magnetocrystalline anisotropy energy is obtained to be 334 ± 20 kJ/m3 at 5 K. We have fabricated a pseudo single crystal of cementite under a rotating magnetic field and investigated its easy and hard axes of magnetization, and determined its magnetocrystalline anisotropy energy. The obtained results are as follows: the hard and easy axes of cementite are the a- and c-axes of the orthorhombic structure with the space group Pnma, respectively. The hard axis observed experimentally was in good agreement with that obtained by an ab initio calculation; however, such consistency was not observed for the easy axis. The magnetocrystalline anisotropy energy was determined as 334 ± 20 kJ/m3 at 5 K.