Spin state of cations and magnetoelastic effect in the Mn1−X YbXS

Magnetic moment and magnetization curves of the Mn1−XYbXS (0.05≤Х≤0.2) solid solutions have been experimentally studied at temperatures 4–700K in magnetic fields up to 9T. Spin states of manganese and ytterbium ions, the concentration region with the bi- and trivalent states of ytterbium ions are de...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2014-02, Vol.352, p.1-5
Main Authors: Aplesnin, S.S., Kharkov, A.M., Romanova, O.B., Sitnikov, M.N., Eremin, E.V., Gorev, M.V., Yanushkevich, K.I., Sokolov, V.V., Pichugin, A.Yu
Format: Article
Language:English
Subjects:
Magnetization curve
Magnetoelastic effect
Spin state
Valence fluctuations
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Summary:Magnetic moment and magnetization curves of the Mn1−XYbXS (0.05≤Х≤0.2) solid solutions have been experimentally studied at temperatures 4–700K in magnetic fields up to 9T. Spin states of manganese and ytterbium ions, the concentration region with the bi- and trivalent states of ytterbium ions are determined. The nonlinear field behavior of the magnetization at X=0.05, the sharp Curie temperature drop and a decrease in the Neel temperature were found. The decrease in the coefficient of thermal expansion with increasing concentration of ytterbium in the magnetically ordered region and the interrelation between the magnetic and elastic subsystems of the Mn1–XYbXS solid solutions have been established. •The spins of manganese and ytterbium ions are estimated.•The bi- and trivalent states of ytterbium ions are determined.•Two peak in the coefficient of thermal expansion is found.•Decreasing of magnetoelastic interaction in Mn1−XYbXS with increasing concentration of ytterbium.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2013.09.061