Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7991783 | Journal of Alloys and Compounds | 2018 | 7 Pages |
Abstract
FeNi films were directly deposited on MgO(001) substrates by co-sputtering and rapid thermal annealing (RTA). The formation of the L10 phase was investigated for films with different thicknesses and different annealing conditions by grazing incidence X-ray diffraction. For the FeNi films with a thickness of 5â¯nm, superlattice 001 and 110 peaks were observed after annealing at a heating rate of 50â¯Â°C/s, which indicates that three variants of L10 grains were formed in the films. The maximum long-range order parameter, which corresponded to a volume-averaged parameter, was approximately 0.11. For the FeNi films with a thickness of 30â¯nm, a superlattice 110 peak was only observed after annealing at a heating rate of 50â¯Â°C/s, and the formation of 001 textured grains was clarified. Magnetic properties also changed depending on the FeNi film structures. The formation mechanism of L10-FeNi is discussed based on the strain caused by RTA in the FeNi films.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Takayuki Tashiro, Masaki Mizuguchi, Takayuki Kojima, Tomoyuki Koganezawa, Masato Kotsugi, Takumi Ohtsuki, Kazuhisa Sato, Toyohiko Konno, Koki Takanashi,