Magnetic Domain Structure of Cobalt and Iron Borides
- 19 Downloads
The method of slow cooling from melting temperature is used to obtain coarse-grain ingots of (FexCo1 – x)2B with columnar structure. It is shown that at room temperature the configuration of the domain structure of the specimens of (FexCo1 – x)2B corresponds to magnetocrystalline anisotropy (MCA) of different types. Alloys Fe2B, (Fe0.4Co0.6)2B, (Fe0.2Co0.8)2B and Co2B exhibit MCA of the type of a “plane of easy axes.” Alloy (Fe0.92Co0.08)2B has a state with spin-reorientation transition of type “easy axis” – “plane of easy axes”.
Key wordsmagnetic domain structure microstructure magnetocrystalline anisotropy spin-reorientation transition
The work has been performed with support of the Ministry of Education and Science of the Russian Federation, Grant No. 3.7849.2017_BCh.
- 7.M. B. Lyakhova, E. M. Semenova, K. P. Skokov, et al., “Domain structure of R2M17 (M = Fe, Co) single crystals with magnetocrystalline anisotropy of “easy plane” type,” Gorn. Inform.-Anal. Byul., 12(12), 404 – 413 (2007).Google Scholar
- 8.S. S. Kabanov, M. B. Lyakhova, O. V. Zhdanova, et al., “Microand domain structure of iron and cobalt borides,” Vest. Tver. Gos. Univers., Ser. Fiz., No. 1, 12 – 19 (2014).Google Scholar
- 9.C. Kittel, “The physical theory of ferromagnetic domains of spontaneous magnetization,” in: The Physics of Ferromagnetic Domains [Russian translation], Inostr. Literatura, Moscow (1951), pp. 19 – 116.Google Scholar
- 10.A. Hubert and R. Schafer, Magnetic Domains. The Analysis of Magnetic Microstructures, Springer (1998), 720 p.Google Scholar