Intermediate-valence state of the Sm and Eu in SmB 6 and EuCu 2 Si 2 : neutron spectroscopy data and analysis
Magnetic neutron scattering data for Sm (SmB , Sm(Y)S) and Eu (EuCu Si Ge ) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the...
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| Veröffentlicht in: | Journal of physics. Condensed matter 2018-02, Vol.30 (5), p.055801 |
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| container_issue | 5 |
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| container_title | Journal of physics. Condensed matter |
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| creator | Savchenkov, P S Alekseev, P A Podlesnyak, A Kolesnikov, A I Nemkovski, K S |
| description | Magnetic neutron scattering data for Sm (SmB
, Sm(Y)S) and Eu (EuCu
Si
Ge
) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the low-energy excitation in the neutron spectra, such as the resonance mode, including its magnetic form factor. Along with specific features of the formation of the intermediate-valence state for Sm and Eu ions, common physical mechanisms have been revealed for systems based on these elements from the middle of the rare-earth series. A consistent description of the existing experimental data has been obtained by using the concept of a loosely bound hole for the Eu f-electron shell in the intermediate-valence state, in analogy with the previously established loosely bound electron model for the Sm ion. |
| doi_str_mv | 10.1088/1361-648X/aaa1aa |
| format | Article |
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, Sm(Y)S) and Eu (EuCu
Si
Ge
) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the low-energy excitation in the neutron spectra, such as the resonance mode, including its magnetic form factor. Along with specific features of the formation of the intermediate-valence state for Sm and Eu ions, common physical mechanisms have been revealed for systems based on these elements from the middle of the rare-earth series. A consistent description of the existing experimental data has been obtained by using the concept of a loosely bound hole for the Eu f-electron shell in the intermediate-valence state, in analogy with the previously established loosely bound electron model for the Sm ion.</description><identifier>ISSN: 0953-8984</identifier><identifier>EISSN: 1361-648X</identifier><identifier>DOI: 10.1088/1361-648X/aaa1aa</identifier><identifier>PMID: 29324435</identifier><language>eng</language><publisher>England: IOP Publishing</publisher><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; intermediate valence ; intermultiplet transitions ; magnetic form factor ; neutron spectroscopy ; rare-earth compounds</subject><ispartof>Journal of physics. Condensed matter, 2018-02, Vol.30 (5), p.055801</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1385-912f48241451fc8d966263c9406e9b6dbf637b8954ef0c6656380ce72197d0963</citedby><cites>FETCH-LOGICAL-c1385-912f48241451fc8d966263c9406e9b6dbf637b8954ef0c6656380ce72197d0963</cites><orcidid>0000-0002-7891-1061 ; 0000-0003-1940-4649 ; 0000-0001-9366-6319 ; 0000-0001-7752-4927 ; 0000-0002-1925-2887 ; 0000000219252887 ; 0000000278911061 ; 0000000177524927 ; 0000000193666319 ; 0000000319404649</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29324435$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/servlets/purl/1427612$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Savchenkov, P S</creatorcontrib><creatorcontrib>Alekseev, P A</creatorcontrib><creatorcontrib>Podlesnyak, A</creatorcontrib><creatorcontrib>Kolesnikov, A I</creatorcontrib><creatorcontrib>Nemkovski, K S</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><title>Intermediate-valence state of the Sm and Eu in SmB 6 and EuCu 2 Si 2 : neutron spectroscopy data and analysis</title><title>Journal of physics. Condensed matter</title><addtitle>J Phys Condens Matter</addtitle><description>Magnetic neutron scattering data for Sm (SmB
, Sm(Y)S) and Eu (EuCu
Si
Ge
) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the low-energy excitation in the neutron spectra, such as the resonance mode, including its magnetic form factor. Along with specific features of the formation of the intermediate-valence state for Sm and Eu ions, common physical mechanisms have been revealed for systems based on these elements from the middle of the rare-earth series. A consistent description of the existing experimental data has been obtained by using the concept of a loosely bound hole for the Eu f-electron shell in the intermediate-valence state, in analogy with the previously established loosely bound electron model for the Sm ion.</description><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>intermediate valence</subject><subject>intermultiplet transitions</subject><subject>magnetic form factor</subject><subject>neutron spectroscopy</subject><subject>rare-earth compounds</subject><issn>0953-8984</issn><issn>1361-648X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kM1LAzEQxYMotlbvniR4X5uvzSbetFQtFDxUwVvIZhO60s0um6zQ_97Urb3MzBveG4YfALcYPWAkxBxTjjPOxNdca421PgPT0-ocTJHMaSakYBNwFcI3QogJyi7BhEhKGKP5FDQrH23f2KrW0WY_eme9sTDEpGDrYNxauGmg9hVcDrD2STxDftSLARK4qVN5hN4OsW89DJ01aQim7faw0lH_ebXXu32owzW4cHoX7M2xz8Dny_Jj8Zat319Xi6d1ZjAVeSYxcUwQhlmOnRGV5JxwaiRD3MqSV6XjtCiFzJl1yHCecyqQsQXBsqiQ5HQG7se7bYi1CqaO1mxN6316TmFGCo5JMqHRZNK_obdOdX3d6H6vMFIHvOrAUh1YqhFvityNkW4oE7NT4J8n_QVt4nPq</recordid><startdate>20180207</startdate><enddate>20180207</enddate><creator>Savchenkov, P S</creator><creator>Alekseev, P A</creator><creator>Podlesnyak, A</creator><creator>Kolesnikov, A I</creator><creator>Nemkovski, K S</creator><general>IOP Publishing</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-7891-1061</orcidid><orcidid>https://orcid.org/0000-0003-1940-4649</orcidid><orcidid>https://orcid.org/0000-0001-9366-6319</orcidid><orcidid>https://orcid.org/0000-0001-7752-4927</orcidid><orcidid>https://orcid.org/0000-0002-1925-2887</orcidid><orcidid>https://orcid.org/0000000219252887</orcidid><orcidid>https://orcid.org/0000000278911061</orcidid><orcidid>https://orcid.org/0000000177524927</orcidid><orcidid>https://orcid.org/0000000193666319</orcidid><orcidid>https://orcid.org/0000000319404649</orcidid></search><sort><creationdate>20180207</creationdate><title>Intermediate-valence state of the Sm and Eu in SmB 6 and EuCu 2 Si 2 : neutron spectroscopy data and analysis</title><author>Savchenkov, P S ; Alekseev, P A ; Podlesnyak, A ; Kolesnikov, A I ; Nemkovski, K S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1385-912f48241451fc8d966263c9406e9b6dbf637b8954ef0c6656380ce72197d0963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>intermediate valence</topic><topic>intermultiplet transitions</topic><topic>magnetic form factor</topic><topic>neutron spectroscopy</topic><topic>rare-earth compounds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Savchenkov, P S</creatorcontrib><creatorcontrib>Alekseev, P A</creatorcontrib><creatorcontrib>Podlesnyak, A</creatorcontrib><creatorcontrib>Kolesnikov, A I</creatorcontrib><creatorcontrib>Nemkovski, K S</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Journal of physics. Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Savchenkov, P S</au><au>Alekseev, P A</au><au>Podlesnyak, A</au><au>Kolesnikov, A I</au><au>Nemkovski, K S</au><aucorp>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Intermediate-valence state of the Sm and Eu in SmB 6 and EuCu 2 Si 2 : neutron spectroscopy data and analysis</atitle><jtitle>Journal of physics. Condensed matter</jtitle><addtitle>J Phys Condens Matter</addtitle><date>2018-02-07</date><risdate>2018</risdate><volume>30</volume><issue>5</issue><spage>055801</spage><pages>055801-</pages><issn>0953-8984</issn><eissn>1361-648X</eissn><abstract>Magnetic neutron scattering data for Sm (SmB
, Sm(Y)S) and Eu (EuCu
Si
Ge
) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the low-energy excitation in the neutron spectra, such as the resonance mode, including its magnetic form factor. Along with specific features of the formation of the intermediate-valence state for Sm and Eu ions, common physical mechanisms have been revealed for systems based on these elements from the middle of the rare-earth series. A consistent description of the existing experimental data has been obtained by using the concept of a loosely bound hole for the Eu f-electron shell in the intermediate-valence state, in analogy with the previously established loosely bound electron model for the Sm ion.</abstract><cop>England</cop><pub>IOP Publishing</pub><pmid>29324435</pmid><doi>10.1088/1361-648X/aaa1aa</doi><orcidid>https://orcid.org/0000-0002-7891-1061</orcidid><orcidid>https://orcid.org/0000-0003-1940-4649</orcidid><orcidid>https://orcid.org/0000-0001-9366-6319</orcidid><orcidid>https://orcid.org/0000-0001-7752-4927</orcidid><orcidid>https://orcid.org/0000-0002-1925-2887</orcidid><orcidid>https://orcid.org/0000000219252887</orcidid><orcidid>https://orcid.org/0000000278911061</orcidid><orcidid>https://orcid.org/0000000177524927</orcidid><orcidid>https://orcid.org/0000000193666319</orcidid><orcidid>https://orcid.org/0000000319404649</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Institute of Physics Journals |
| subjects | CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY intermediate valence intermultiplet transitions magnetic form factor neutron spectroscopy rare-earth compounds |
| title | Intermediate-valence state of the Sm and Eu in SmB 6 and EuCu 2 Si 2 : neutron spectroscopy data and analysis |
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