Domain Structure of R2Fe17 Intermetallic Compounds with Planar-Type Anisotropy
Magnetic domain structure is studied in single crystals of R2Fe17 (R = Tb, Dy, Ho, Er) intermetallic compounds in a wide range of temperatures (10 – 300 K) and magnetic fields (μ0 H = 0 – 0.1 T). It is shown that single crystal specimens of hexagonal magnetics with planar-type anisotropy acquire domain structures containing not only 180-degree domain boundaries but also 60- and 120-degree ones.
Key wordsdomain structure hexagonal magnetics planar-type magnetocrysalline anisotropy domain boundaries
The work has been supported by Grant No. 1598 of the Ministry of Education and Science of the Russian Federation.
- 1.I. V. Kudrevatykh, Spontaneous Magnetization, Magnetocrystalline Anisotropy and Anisotropic Magnetostriction of Rare-Earth Compounds Based on Iron and Cobalt, Author’s Abstract of Doctoral’s Thesis [in Russian], Ekaterinburg (1994), 321 p.Google Scholar
- 2.K. Strnat, G. Hoffer, and F. E. Ray, “Magnetic properties of rare-earth-iron intermetallic compounds,” IEEE Trans. Magn., MAG2, 489 – 493 (1966).Google Scholar
- 5.Yu. G. Pastushenkov, K. P. Skokov, A. G. Khokholkov, et al., “Domain structure transformation and magnetic susceptibility of (Er, Ho)2Fe17 single crystal,” in: Moscow Int. Symp. on Magnetism (MISM), 20 – 25 June 2008, Moscow, Book of Abstracts [in Russian], Moscow (2008), p. 780.Google Scholar
- 6.K. P. Skokov, Yu. G. Pastushenkov, Yu. S. Kashkid’ko, et al., “Magnetocaloric effect, magnetic domain structure and spin-reorientation transitions in HoCo5 single crystals,” in: MISM, 20 – 25 June 2008, Moscow, Book of Abstracts [in Russian], Moscow (2008), p. 816.Google Scholar
- 8.A. I. Mitsek, N. P. Kolmakova, and D. I. Sirota., “Magnetic phase diagrams and domain structures of ferromagnetic crystals with high-order symmetry axis,” Fiz. Met. Metalloved., 33, 35 – 47 (1974).Google Scholar
- 9.9. D. Goll, R. Loeffler, J. Herbst, R. Karimi, and G. Schneider, “High-throughput search for new permanent magnet materials,” J. Phys. Condens. Mat., 26(064208), 13 (2014).Google Scholar
- 10.A. Hubert and R. Schäfer, Magnetic Domains. The Analysis of Magnetic Microstructures, Springer-Verlag, Berlin Heidelberg (1998), p. 696.Google Scholar