Ferromagnetic superstructure of an La0.85Sr0.15MnO3 manganite single crystal |
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| Authors: | S. F. Dubinin V. E. Arkhipov S. G. Teploukhov Ya. M. Mukovskii |
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| Affiliation: | (1) Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia;(2) Moscow Institute of Steel and Alloys, Leninskii pr. 4, Moscow, 117935, Russia |
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| Abstract: | The elastic thermal-neutron scattering patterns of a La0.85Sr0.15MnO3 manganite orthorhombic single crystal are investigated in the temperature range 4.2–300 K. It is found that, in addition to the known ferromagnetic ordering (T C=240 K), this compound exhibits a ferromagnetic superstructure with the (010)2π/b wave vector (in the Pnma setting of the space group D 2h 16 ). The ferromagnetic superstructure is observed in the studied crystal at temperatures ranging from 4.2 to 200 K. It is shown that the formation of the ferromagnetic superstructure in this compound is directly associated with a 1/8-type charge ordering of Mn3+ and Mn4+ ions. |
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