X-ray study of Nd₀.₅Sr₀.₅MnO₃ above and below the ferromagnetic metal-antiferromagnetic insulator spontaneous phase transition manganite structure

• Published in: Физика низких температур
• Date: 2001
• Main Authors: Eremenko, V., Gnatchenko, S., Makedonska, N., Shabakayeva, Yu., Shvedun, M., Sirenko, V., Fink-Finowicki, J., Kamenev, K.V., Balakrishnan, G., D. McK Paul
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2001
• Subjects: Низкотемпеpатуpный магнетизм
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/129130
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: X-ray study of Nd₀.₅Sr₀.₅MnO₃ above and below the ferromagnetic metal-antiferromagnetic insulator spontaneous phase transition manganite structure / V.Eremenko, S.Gnatchenko, N.Makedonska, Yu. Shabakayeva, M.Shvedun, V.Sirenko, J.Fink-Finowicki, K.V. Kamenev, G.Balakrishnan D. McK Paul // Физика низких температур. — 2001. — Т. 27, № 11. — С. 1258-1263. — Бібліогр.: 13 назв. — англ.

The crystal structure of the manganite Nd₀.₅Sr₀.₅MnO₃ is studied at temperatures T=300 and 77.3 K by means of an x-ray diffractometer. It is shown that the transition from the ferromagnetic metallic state to the antiferromagnetic insulating charge-ordered state is accompanied by a lowering of the symmetry of the structure from orthorhombic to monoclinic. The space-group symmetry of the orthorhombic and monoclinic phases is identified as Imma and P21 / m, respectively. Twinning of the crystal and the formation of a twin domain structure with coherent boundaries in the (00l) crystallographic planes are found.