V. S. Pokatilov, V. S. Rusakov, A. M. Gapochka, A. S. Sigov
{"title":"Spatial Spin-Modulated Structure of Bi1 – xSrxFeO3 – y (x = 0, 0.05, and 0.10) Multiferroics","authors":"V. S. Pokatilov, V. S. Rusakov, A. M. Gapochka, A. S. Sigov","doi":"10.1134/S1063774523600655","DOIUrl":null,"url":null,"abstract":"<p>The room-temperature X-ray and Mössbauer data on the BiFeO<sub>3</sub>, Bi<sub>0.95</sub>Sr<sub>0.05</sub>FeO<sub>3 –</sub> <sub><i>y</i></sub>, and Bi<sub>0.90</sub>Sr<sub>0.10</sub>FeO<sub>3 –</sub> <sub><i>y</i></sub> multiferroics obtained by solid-phase synthesis are presented. The samples have a rhombohedral crystal structure with the sp. gr. <i>R</i>3<i>c</i>. The lattice parameter <i>a</i><sub>h</sub> is invariable, while the parameter <i>c</i><sub>h</sub> decreases with increasing strontium content. The <sup>57</sup>Fe Mössbauer spectra recorded at a temperature of 295 K have been interpreted within the cycloid spatial spin-modulated structure model. It has been established that the easy-axis magnetic anisotropy is implemented in the investigated multiferroics. The anharmonicity parameter <i>m</i> of the spin-modulated structure has been measured. Upon replacement of trivalent Bi<sup>3+</sup> ions in small amounts (<i>x</i> = 0–0.10) with divalent Sr<sup>2+</sup> ions, the parameter <i>m</i> increases by a factor of more than 3: from 0.10(4) at <i>x</i> = 0.00 to 0.36(10) at <i>x</i> = 0.10.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774523600655","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The room-temperature X-ray and Mössbauer data on the BiFeO3, Bi0.95Sr0.05FeO3 –y, and Bi0.90Sr0.10FeO3 –y multiferroics obtained by solid-phase synthesis are presented. The samples have a rhombohedral crystal structure with the sp. gr. R3c. The lattice parameter ah is invariable, while the parameter ch decreases with increasing strontium content. The 57Fe Mössbauer spectra recorded at a temperature of 295 K have been interpreted within the cycloid spatial spin-modulated structure model. It has been established that the easy-axis magnetic anisotropy is implemented in the investigated multiferroics. The anharmonicity parameter m of the spin-modulated structure has been measured. Upon replacement of trivalent Bi3+ ions in small amounts (x = 0–0.10) with divalent Sr2+ ions, the parameter m increases by a factor of more than 3: from 0.10(4) at x = 0.00 to 0.36(10) at x = 0.10.
期刊介绍:
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.