R. M. Eremina, E. M. Moshkina, I. V. Yatsyk, V. A. Shustov
{"title":"Mn2.25Co0.75BO5 的晶体结构和 EPR 光谱","authors":"R. M. Eremina, E. M. Moshkina, I. V. Yatsyk, V. A. Shustov","doi":"10.1134/S1062873824707190","DOIUrl":null,"url":null,"abstract":"<p>Results are presented from investigating the structure of Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> via powder neutron diffraction. Crystals of ludwigite Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> are grown by flux method using a Bi<sub>2</sub>Mo<sub>3</sub>O<sub>12</sub>-based solvent diluted with Na<sub>2</sub>CO<sub>3</sub> carbonate. Boric acid <span>\\({\\text{H}}_{3}^{{11}}{\\text{B}}{{{\\text{O}}}_{{\\text{3}}}}\\)</span> is used as the boron-containing reagent. Powder neutron diffraction measurements are made at a temperature of 100 K on powder prepared by grinding grown single crystals. Rietveld studies show that the grown Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> crystals belong to <i>Pbam</i> space group. Crystallographic sites occupied by cobalt and manganese ions are identified by analyzing powder neutron diffractograms. A bottleneck regime is observed in the temperature dependence of the EPR spectra.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 7","pages":"1126 - 1130"},"PeriodicalIF":0.4800,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Crystal Structure and EPR Spectra of Mn2.25Co0.75BO5\",\"authors\":\"R. M. Eremina, E. M. Moshkina, I. V. Yatsyk, V. A. Shustov\",\"doi\":\"10.1134/S1062873824707190\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Results are presented from investigating the structure of Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> via powder neutron diffraction. Crystals of ludwigite Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> are grown by flux method using a Bi<sub>2</sub>Mo<sub>3</sub>O<sub>12</sub>-based solvent diluted with Na<sub>2</sub>CO<sub>3</sub> carbonate. Boric acid <span>\\\\({\\\\text{H}}_{3}^{{11}}{\\\\text{B}}{{{\\\\text{O}}}_{{\\\\text{3}}}}\\\\)</span> is used as the boron-containing reagent. Powder neutron diffraction measurements are made at a temperature of 100 K on powder prepared by grinding grown single crystals. Rietveld studies show that the grown Mn<sub>2.25</sub>Co<sub>0.75</sub>BO<sub>5</sub> crystals belong to <i>Pbam</i> space group. Crystallographic sites occupied by cobalt and manganese ions are identified by analyzing powder neutron diffractograms. A bottleneck regime is observed in the temperature dependence of the EPR spectra.</p>\",\"PeriodicalId\":504,\"journal\":{\"name\":\"Bulletin of the Russian Academy of Sciences: Physics\",\"volume\":\"88 7\",\"pages\":\"1126 - 1130\"},\"PeriodicalIF\":0.4800,\"publicationDate\":\"2024-08-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Russian Academy of Sciences: Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1062873824707190\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Russian Academy of Sciences: Physics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1062873824707190","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
Crystal Structure and EPR Spectra of Mn2.25Co0.75BO5
Results are presented from investigating the structure of Mn2.25Co0.75BO5 via powder neutron diffraction. Crystals of ludwigite Mn2.25Co0.75BO5 are grown by flux method using a Bi2Mo3O12-based solvent diluted with Na2CO3 carbonate. Boric acid \({\text{H}}_{3}^{{11}}{\text{B}}{{{\text{O}}}_{{\text{3}}}}\) is used as the boron-containing reagent. Powder neutron diffraction measurements are made at a temperature of 100 K on powder prepared by grinding grown single crystals. Rietveld studies show that the grown Mn2.25Co0.75BO5 crystals belong to Pbam space group. Crystallographic sites occupied by cobalt and manganese ions are identified by analyzing powder neutron diffractograms. A bottleneck regime is observed in the temperature dependence of the EPR spectra.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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