<正> After being annealed at 773 K for about two months, structural transitions from cubic to orthorhombic have been observed for LaFe13-xAlx (x = 6, 7). The results of X-ray diffraction and magnetic measurement show that under the given heat treatment procedure only those cubic NaZn13 phase samples with mictomagnetic character change their structures. The structural transitions result in the change of magnetic properties from mictomagnetism to ferromagnetism.
【英文摘要】
After being annealed at 773 K for about two months, structural transitions from cubic to orthorhombic have been observed for LaFe13-xAlx (x = 6, 7). The results of X-ray diffraction and magnetic measurement show that under the given heat treatment procedure only those cubic NaZn13 phase samples with mictomagnetic character change their structures. The structural transitions result in the change of magnetic properties from mictomagnetism to ferromagnetism.
【基金】
Project supported by the National Natural Science Foundation of China
【分类号】
O482.5
【正文快照】
Great interests have arisen from the excellent magnetic properties of LaCol 3intermetallic compound[1--3].To explore new rare earth 3d transition metal perman—ent magnet,it is important to investigate intermetallic compounds related to NaZnl3phase.Severa
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