Structural studies and magnetism of Dy6Ni2.43Sn0.5 stannide


  • L. Romaka Ivan Franko National University of Lviv, Lviv, Ukraine
  • Kh. Miliyanchuk Ivan Franko National University of Lviv, Lviv, Ukraine
  • V.V. Romaka Institute for Solid State Research, IFW-Dresden, Dresden, Germany
  • L. Havela Charles University, Prague, Czech Republic
  • Y. Stadnyk Ivan Franko National University of Lviv, Lviv, Ukraine



Intermetallics, Crystal structure, Magnetic properties, Heat capacity


Intermetallic compound Dy6Ni2.43Sn0.5 was prepared by arc melting and annealing at 873 K. It was characterized by X-ray powder diffraction, differential thermal analysis, and electron probe microanalysis. The crystal structure of low temperature Dy6Ni2.43Sn0.5 phase belongs to the orthorhombic Ho6Co2Ga structure type (space group Immm, a = 0.93116(1) nm, b = 0.94993(1) nm, c = 0.98947(1) nm). Crystal structure refinements showed the deviation from the ideal 6:2:1 stoichiometry corresponding to the formula Dy6Ni2.43Sn0.5. It exhibits a sequence of magnetic phase transitions; antiferromagnetic ordering sets in at 60 K, while further order-order magnetic phase transitions take place at lower temperatures.


L. Romaka, O. Senkovska, D. Fruchart, D. Gignoux, Gignoux, Crystal structure and magnetic properties of new rare earth R12Ni6Sn compounds, J. Magn. Magn. Mater., 242-245, 854 (2002);

Ya.M. Kalychak, Composition and crystal structure of rare-earths-Co-In compounds, J. Alloys Compd. 291, 80 (1999);

L.D. Gulay, Ya.M. Kalychak, M. Wolcyrz, K. Lukaszewicz, Crystal structure of R12Ni6Pb (R = Y, Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu) compounds, J. Alloys Compd. 311, 238 (2000);

R.E. Gladyshevskii, Yu.N. Gryn’, Ya.P. Yarmolyuk, The crystal structure of R6GaCo2 compounds (R = Y, Tb, Dy, Ho, Er, Tm, Lu), Dopov. Akad. Nauk Ukr. RSR A2, 67 (1983).

O.M. Sichevich, L.P. Komarovskaja, Yu.N. Grin, Ya.P. Yarmolyk, R.V. Skolozdra, Crystal structure and magnetic properties of R6Ga{Co,Ni}2 and R6SnNi2 compounds (R-rare earths), Ukr. J. Phyz., 29, 1342 (1984).

J.M. Kalychak, V.I. Zaremba, P.Y. Zavalij, Crystal structure of holmium cobalt indium (6/2/1) Ho6Co2+xIn1-x, x = 0.135, Z. Kristallogr. 208, 380 (1993).

R.V. Skolozdra, in: K.A. Gschneidner, Jr., L.Eyring (Eds.), Handbook on the Physics and Chemistry of Rare-Earths, Vol. 24, North-Holland, Amsterdam, 1997, chapt. 164.

L.D. Gulay, M. Wolcyrz, Crystal structure of R6Co2+xPb1-y (R = Y, Gd, Tb, Dy, Ho, Er, Tm, Lu) and R6Ni2+xPb1-y (R = Tb, Dy, Ho, Er, Tm, Lu) compounds, J. Alloys Compd. 315, 164 (2001);

A.V. Kolomiets, Ya. Mudryk, Yu. Stadnyk, V. Sechovsky, Crystal structure and magnetic properties of Tb6Co2.35Sn0.65, J. Alloys Compd., 333, 34 (2002);

V.I. Zaremba, Y.M. Kalychak, M.V. Dzevenko, U.C. Rodewald, R.D. Hoffmann, R. Pöttgen, Syntheses and structure of Er6Co2.19(1)In0.81(1), Monatsh. Chem. 138, 101 (2007);

A.V. Morozkin, R. Nirmala, S.K. Malik, Magnetic and magnetocaloric properties of Ho6Co2Ga-type Dy6Co2.5Sn2.5 compound, J. Magn. Magn. Mater., 378, 174 (2015);

A.V. Tkachuk, A. Mar, Structure and physical properties of ternary rare-earth cobalt bismuth intermetallics (RE)12Co5Bi (RE = Y, Gd, Tb, Dy, Ho, Er, Tm), Inorg. Chem. 44(7), 2272 (2005);

K.A. Gschneidner, V.K. Pecharsky, M. Gailloux, in: R.G. Ross Ir. (Ed.), Cryocoolers 8, Plenum Press, New-York, 1995.

O. Syshchenko, Yu. Stadnyk, L. Romaka, Ya. Mudryk, R.V. Dremov, V. Sechovsky, Magnetic and transport properties of Er6Ni2Sn, J. Alloys Compd., 319, 14 (2001);

D. Vasylyev, O. Syshchenko, V. Sechovsky, J. Sebek, Yu. Stadnyk, Ya. Mudryk, L. Romaka, Magnetocaloric effect in Er6Ni2Sn, Czech. J. Phys., 52, A205 (2002);

K. Prokes, V. Sechovsky, O. Syshchenko, Magnetic structure of Er6Ni2Sn, J. Alloys Compd. 48-53, 467 (2009);

T. Roisnel, J. Rodriguez-Carvajal, WinPLOTR: a Windows tool for powder diffraction patterns analysis, Mater. Sci. Forum 378–381, 118 (2001).

O.V. Lounasmaa, R. A. Guenther, Specific heat of dysprosium metal between 0.4 and 4°K, Phys. Rev. 126, 1357 (1962);




How to Cite

Romaka, L., Miliyanchuk, K., Romaka, V., Havela, L., & Stadnyk, Y. (2023). Structural studies and magnetism of Dy6Ni2.43Sn0.5 stannide. Physics and Chemistry of Solid State, 24(2), 284–289.



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