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Mössbauer and XAFS Studies of the Effect of Compositional Disorder on the Local Structure OF Pb2FeSbO6 Научная публикация

Журнал Physica B: Condensed Matter
ISSN: 0921-4526 , E-ISSN: 1873-2135
Вых. Данные Год: 2024, Том: 678, Номер статьи : 415726, Страниц : 6 DOI: 10.1016/j.physb.2024.415726
Ключевые слова Multiferroic materials; Perovskites; XAFS; Mössbauer spectroscopy; Local structure
Авторы Shuvaeva V.A. 1 , Kubrin S.P. 1 , Raevski I.P. 1 , Zubavichus Y.V. 2 , Vlasenko V.G. 1 , Sheptun I.G. 1 , Pushkarev A.V. 3 , Olekhnovich N.M. 3 , Raevskaya S.I. 1 , Radyush Yu.V. 3
Организации
1 Research Institute of Physics and Faculty of Physics, Southern Federal University, Russian Federation
2 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Russian Federation
3 Scientific-Practical Materials Research Centre of NAS of Belarus, Belarus

Реферат: X-ray absorption spectroscopic (XAS) and Mössbauer investigations have been carried out to obtain information on the local environment of Fe ions in Pb2FeSbO6 (PFS) samples with different degree of the Fe3+ and Sb5+ ordering. Analysis of Mössbauer spectra shows, that the fraction of doublet component in the spectrum of the disordered PFS sample is significantly larger, than that of the ordered one, however singlet component still persists, indicating the presence of the compositionally ordered regions. The Fe K-spectrum absorption for the ordered PFS sample exhibits the lowest pre-edge intensities, indicating that Fe position is close to the oxygen octahedron center. The higher amplitude of this peak for the disordered sample provides evidence for structural distortions, involving Fe displacement off the octahedra centers. Additional support to this conclusion provides the structure of absorption spectra, which gave substantially higher Debye-Waller factor of Fe–O shell for disordered sample as compared to the ordered one.
Библиографическая ссылка: Shuvaeva V.A. , Kubrin S.P. , Raevski I.P. , Zubavichus Y.V. , Vlasenko V.G. , Sheptun I.G. , Pushkarev A.V. , Olekhnovich N.M. , Raevskaya S.I. , Radyush Y.V.
Mössbauer and XAFS Studies of the Effect of Compositional Disorder on the Local Structure OF Pb2FeSbO6
Physica B: Condensed Matter. 2024. V.678. 415726 :1-6. DOI: 10.1016/j.physb.2024.415726 WOS Scopus CAPlusCA OpenAlex СКИФ ID
Даты:
Поступила в редакцию: 22 нояб. 2023 г.
Принята к публикации: 25 янв. 2024 г.
Опубликована online: 4 февр. 2024 г.
Опубликована в печати: 1 апр. 2024 г.
Идентификаторы БД:
Web of science: WOS:001199015000001
Scopus: 2-s2.0-85185281125
Chemical Abstracts: 2024:369451
Chemical Abstracts (print): 186:77526
OpenAlex: W4391519260
СКИФ ID: 603
Цитирование в БД:
БД Цитирований
OpenAlex 1
Scopus 1
Web of science 1
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