Local magnetism in MnSiPt rules the chemical bond.
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| Title: | Local magnetism in MnSiPt rules the chemical bond. |
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| Authors: | Rosner, Helge1 rosner@cpfs.mpg.de, Leithe-Jasper, Andreas1, Carrillo-Cabrera, Wilder1, Schnelle, Walter1, Ackerbauer, Sarah V.1, Gamza, Monika B.1,2, Grin, Yuri1 grin@cpfs.mpg.de |
| Source: | Proceedings of the National Academy of Sciences of the United States of America. 7/24/2018, Vol. 115 Issue 30, p7706-7710. 5p. |
| Subjects: | Magnetism, Chemical bonds, Intermetallic compounds, Spin polarization, Paramagnetism |
| Abstract: | Among intermetallic compounds, ternary phases with the simple stoichiometric ratio 1:1:1 form one of the largest families. More than 15 structural patterns have been observed for several hundred compounds constituting this group. This, on first glance unexpected, finding is a consequence of the complex mechanism of chemical bonding in intermetallic structures, allowing for large diversity. Their formation process can be understood based on a hierarchy of energy scales: The main share is contributed by covalent and ionic interactions in accordance with the electronic needs of the participating elements. However, smaller additional atomic interactions may still tip the scales. Here, we demonstrate that the local spin polarization of paramagnetic manganese in the new compound MnSiPt rules the adopted TiNiSi-type crystal structure. Combining a thorough experimental characterization with a theoretical analysis of the energy landscape and the chemical bonding of MnSiPt, we show that the paramagnetism of the Mn atoms suppresses the formation of Mn-Mn bonds, deciding between competing crystal structures. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the National Academy of Sciences of the United States of America is the property of National Academy of Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 131086532 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Local magnetism in MnSiPt rules the chemical bond. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rosner%2C+Helge%22">Rosner, Helge</searchLink><relatesTo>1</relatesTo><i> rosner@cpfs.mpg.de</i><br /><searchLink fieldCode="AR" term="%22Leithe-Jasper%2C+Andreas%22">Leithe-Jasper, Andreas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Carrillo-Cabrera%2C+Wilder%22">Carrillo-Cabrera, Wilder</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Schnelle%2C+Walter%22">Schnelle, Walter</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ackerbauer%2C+Sarah+V%2E%22">Ackerbauer, Sarah V.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gamza%2C+Monika+B%2E%22">Gamza, Monika B.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Grin%2C+Yuri%22">Grin, Yuri</searchLink><relatesTo>1</relatesTo><i> grin@cpfs.mpg.de</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America%22">Proceedings of the National Academy of Sciences of the United States of America</searchLink>. 7/24/2018, Vol. 115 Issue 30, p7706-7710. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Magnetism%22">Magnetism</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+bonds%22">Chemical bonds</searchLink><br /><searchLink fieldCode="DE" term="%22Intermetallic+compounds%22">Intermetallic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Spin+polarization%22">Spin polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Paramagnetism%22">Paramagnetism</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Among intermetallic compounds, ternary phases with the simple stoichiometric ratio 1:1:1 form one of the largest families. More than 15 structural patterns have been observed for several hundred compounds constituting this group. This, on first glance unexpected, finding is a consequence of the complex mechanism of chemical bonding in intermetallic structures, allowing for large diversity. Their formation process can be understood based on a hierarchy of energy scales: The main share is contributed by covalent and ionic interactions in accordance with the electronic needs of the participating elements. However, smaller additional atomic interactions may still tip the scales. Here, we demonstrate that the local spin polarization of paramagnetic manganese in the new compound MnSiPt rules the adopted TiNiSi-type crystal structure. Combining a thorough experimental characterization with a theoretical analysis of the energy landscape and the chemical bonding of MnSiPt, we show that the paramagnetism of the Mn atoms suppresses the formation of Mn-Mn bonds, deciding between competing crystal structures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the National Academy of Sciences of the United States of America is the property of National Academy of Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1073/pnas.1806842115 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 7706 Subjects: – SubjectFull: Magnetism Type: general – SubjectFull: Chemical bonds Type: general – SubjectFull: Intermetallic compounds Type: general – SubjectFull: Spin polarization Type: general – SubjectFull: Paramagnetism Type: general Titles: – TitleFull: Local magnetism in MnSiPt rules the chemical bond. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rosner, Helge – PersonEntity: Name: NameFull: Leithe-Jasper, Andreas – PersonEntity: Name: NameFull: Carrillo-Cabrera, Wilder – PersonEntity: Name: NameFull: Schnelle, Walter – PersonEntity: Name: NameFull: Ackerbauer, Sarah V. – PersonEntity: Name: NameFull: Gamza, Monika B. – PersonEntity: Name: NameFull: Grin, Yuri IsPartOfRelationships: – BibEntity: Dates: – D: 24 M: 07 Text: 7/24/2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 00278424 Numbering: – Type: volume Value: 115 – Type: issue Value: 30 Titles: – TitleFull: Proceedings of the National Academy of Sciences of the United States of America Type: main |
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