Magnetic properties of the TbMn6Sn6 compound / Zaikov N.K., Mushnikov N.V., Bartashevich M.I., Goto T., Pirogov A.N. // Physics of Metals and Metallography. - 2003. - V. 95, l. 1. - P. 31-37.

ISSN:

0031918X

Type:

Article

Abstract:

Magnetic properties of the TbMn6Sn6 compound in the temperature range 4.2-310 K were investigated. The magnetization jumps observed upon magnetization along the hard magnetization direction are shown to be due to the first-order magnetic-field-induced spin-reorientation transitions (SRT). The magnetization curves were described within a phenomenological model of magnetization with allowance for two constants of magnetocrystalline anisotropy K1 and K2. Their numerical values were obtained. Neutron diffraction study of the TbMn6Sn6 compound in an external magnetic field was carried out. The values and orientations of magnetic moments of the Tb and Mn sublattices before and after SRT were determined. The values of the K1 constant and of the constant of intersublattice exchange interaction nTbMn (6.3 to 10.1 × 106 J/m3 and 4.2 to 6.2 T f.u./μB, respectively) were obtained from a numerical analysis of the magnetization curve measured along the hard magnetization direction in an oriented TbMn6Sn6 sample at 4.2 K. The magnetic-field dependences of the linear and volume magnetostrictions of an isotropic TbMn6Sn6 sample correlate well with jumpwise magnetization processes. The major hysteresis loops were measured and the values of the coercive force were determined in a wide temperature range.

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037229607&partnerID=40&md5=78dc54f3d3622b10920ad2dc09cad025
Affiliations	Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg 620219, Russian Federation; Ural State University, pr. Lenina 51, Ekaterinburg 620083, Russian Federation; Institute for Solid State Physics, University of Tokyo, Kashiwanoha 5-1-5, Kashiva-shi, Chiba-ken 277-8581, Japan
References	Olenych, R.R., Aksel'Rud, L.G., Yarmolyuk, Ya.P., Crystal structure of ternary germanides RFe6Ge6 (R = Sc, Ti, Zr, Hf, Mb) and RCo6Ge6 (R = Ti, Zr, Hf) (1981) Dokl. Akad. Nauk Ukr. SSR, (2 SER. A), pp. 87-91; Malaman, B., Venturini, G., Welter, R., Magnetic properties of RMn6Sn6 (R = Gd-Er) compounds from neutron diffraction and mössbauer measurements (1999) J. Magn. Magn. Mater., 202, pp. 519-534; Hu, J., Wang, K., Hu, B., Magnetic transition and coercivity in TbMn6Sn6 (1995) J. Phys.: Condens. Matter, 7, pp. 889-893; Zajkov, N.K., Mushnikov, N.V., Bartashevich, M.I., Goto, T., Magnetization processes in the TbMn6Sn6 compound (2000) J. Alloys Compd., 309, pp. 26-30; Clatterbuck, D., Gschneidner, K., Magnetic properties of RMn6Sn6 (R = Tb, Ho, Er, Tm, Lu) single crystals (1999) J. Magn. Magn. Mater., 207, pp. 78-94; Asti, G., Bolzoni, F., Theory of first order magnetization processes: Uniaxial anisotropy (1980) J. Magn. Magn. Mater., 20, pp. 29-43; Asti, G., Bolzoni, F., Pareti, L., Magnetic anisotropy of RE-magnets (1987) IEEE Trans. Magn., MAG-23 (5), pp. 2521-2526; Zaikov, N.K., Pirogov, A.N., Mushnikov, N.V., Magnetic-field-induced spin-reorientation transition in TbMn6Sn6 (2000) Pis'ma Zh. Eksp. Teor. Fiz., 72 (8), p. 623; Chafik, B., Idrissi, El., Venturini, G., Magnetic structure of TbMn6Sn6 and HoMn6Sn6 compounds from neutron diffraction study (1991) J. Less-Common Met., 175, pp. 143-154; Venturini, G., Chafik, B., Idrissi, El., Malaman, B., Magnetic properties of RMn6Sn6 (R = Sc, Y, Gd-Tm, Lu) compounds with HfFe6Ge6 type structure (1991) J. Magn. Magn. Mater., 94, pp. 35-42
Correspondence Address	Zaikov, N.K.; Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg 620219, Russian Federation
Language of Original Document	English
Abbreviated Source Title	Phys. Met. Metallogr.
Source	Scopus