Transformation Of Magnetic Transitions and Crystal Structure of NdBaMn2O6 At Diamagnetic Dilution with Ti4+ Ions in the Mn-Sublattice
- Авторы: Sterkhov E.V.1, Uporov S.A.1
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Учреждения:
- Institute of Metallurgy, Ural Branch
- Выпуск: Том 59, № 8 (2018)
- Страницы: 2023-2028
- Раздел: Article
- URL: https://journals.rcsi.science/0022-4766/article/view/161826
- DOI: https://doi.org/10.1134/S002247661808036X
- ID: 161826
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Аннотация
Magnetic and structural transitions in NdBaMn2−xTixO6 (x = 0, 0.2) samples obtained by the topotactic procedure at 1373 K and lgPO2=−19 atm are studied by low-temperature X-ray diffraction and magnetometry in 1–5 T fields. Undoped double manganite undergoes a reversible ferromagnet—antiferromagnet magnetic phase transition at ТN = 278 K without changing symmetry. The 20 mol.% titanium substitution for manganese causes a decrease in symmetry from the tetragonal space group P4/mmm to the orthorhombic space group Pmmm and a shift of magnetic transitions to lower temperatures. Oxide NdBaMn2O6 demonstrates high values of the magnetocaloric effect in the temperature range 250–315 K.
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Об авторах
E. Sterkhov
Institute of Metallurgy, Ural Branch
Автор, ответственный за переписку.
Email: Ev.Sterhov@mail.ru
Россия, Ekaterinburg
S. Uporov
Institute of Metallurgy, Ural Branch
Email: Ev.Sterhov@mail.ru
Россия, Ekaterinburg
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