{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361981471034555136.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1111/jace.14700"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjace.14700"}},{"identifier":{"@type":"URI","@value":"https://ceramics.onlinelibrary.wiley.com/doi/pdf/10.1111/jace.14700"}}],"dc:title":[{"@value":"Effect of the (Ba + Sr)/Ti ratio on the microwave‐tunable properties of Ba\n                    <sub>0.6</sub>\n                    Sr\n                    <sub>0.4</sub>\n                    TiO\n                    <sub>3</sub>\n                    ceramics"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title>\n                  <jats:p>\n                    The impact of the (Ba + Sr)/Ti (A/B) ratio on the microwave‐tunable characteristics of diffuse phase transition (\n                    <jats:styled-content style=\"fixed-case\">DPT</jats:styled-content>\n                    ) ferroelectric Ba\n                    <jats:sub>0.6</jats:sub>\n                    Sr\n                    <jats:sub>0.4</jats:sub>\n                    TiO\n                    <jats:sub>3</jats:sub>\n                    (0.6‐\n                    <jats:styled-content style=\"fixed-case\">BST</jats:styled-content>\n                    ) ceramics was investigated. The reduction in the lattice constant with increasing nonstoichiometry was attributed to introduced partial Schottky defects, i.e.,\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0001.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0001\"/>\n                    and\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0002.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0002\"/>\n                    . The magnitude of the dielectric constant, ε′, at room temperature in the absence of an applied electric field was governed by the shift in the dielectric maximum temperature,\n                    <jats:italic>T</jats:italic>\n                    <jats:sub>m</jats:sub>\n                    , because\n                    <jats:italic>T</jats:italic>\n                    <jats:sub>m</jats:sub>\n                    was close to room temperature for the 0.6‐\n                    <jats:styled-content style=\"fixed-case\">BST</jats:styled-content>\n                    . The dielectric loss, tanδ, diminished as the ε′ decreased for 0.98≤A/B≤1.05, while the tanδ was much higher for A/B=0.95 having the greatest A‐site vacancy loading. The negatively charged\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0003.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0003\"/>\n                    and\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0004.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0004\"/>\n                    were mainly compensated by oxygen vacancies and likely partly compensated by holes, h\n                    <jats:sup>•</jats:sup>\n                    , which contributed to the electrical conduction. The tunability,\n                    <jats:italic>T</jats:italic>\n                    , at 100 MHz was almost constant at 20%–25% for A/B≥1.00 despite the reduction of the ε′, whereas\n                    <jats:italic>T</jats:italic>\n                    decreased for A/B<1.00 to\n                    <jats:italic>ca</jats:italic>\n                    . 10% for A/B=0.95 having the greatest A‐site vacancy loading. The results implied that the\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0005.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0005\"/>\n                    for larger A/B values was more efficient in generating nucleation sites in the polar nanoregions (\n                    <jats:styled-content style=\"fixed-case\">PNR</jats:styled-content>\n                    s) than the\n                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/jace14700-math-0006.png\" xlink:title=\"urn:x-wiley:00027820:media:jace14700:jace14700-math-0006\"/>\n                    for smaller A/B values, thereby providing greater dipole polarization. Consequently, the figure of merit,\n                    <jats:styled-content style=\"fixed-case\">FOM</jats:styled-content>\n                    , reached its maximum of 250 at A/B=0.9875, which was\n                    <jats:italic>ca</jats:italic>\n                    . 155% higher than that of the stoichiometric\n                    <jats:styled-content style=\"fixed-case\">BST</jats:styled-content>\n                    .\n                  </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420001326215276928","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"90598690"},{"@type":"NRID","@value":"1000090598690"},{"@type":"NRID","@value":"9000345247183"},{"@type":"NRID","@value":"9000402017990"},{"@type":"NRID","@value":"9000019054836"},{"@type":"NRID","@value":"9000020457490"},{"@type":"NRID","@value":"9000380985048"},{"@type":"NRID","@value":"9000241751379"},{"@type":"NRID","@value":"9000408451546"},{"@type":"NRID","@value":"9000367430109"},{"@type":"NRID","@value":"9000402039303"},{"@type":"NRID","@value":"9000311062732"},{"@type":"NRID","@value":"9000327926351"},{"@type":"NRID","@value":"9000402045177"},{"@type":"NRID","@value":"9000402027045"},{"@type":"NRID","@value":"9000324997709"},{"@type":"NRID","@value":"9000025017538"},{"@type":"NRID","@value":"9000025008684"},{"@type":"NRID","@value":"9000409176375"},{"@type":"NRID","@value":"9000345292869"},{"@type":"NRID","@value":"9000345393220"},{"@type":"NRID","@value":"9000412548004"},{"@type":"NRID","@value":"9000412349784"},{"@type":"NRID","@value":"9000401802567"},{"@type":"NRID","@value":"9000397951844"},{"@type":"NRID","@value":"9000415202644"},{"@type":"NRID","@value":"9000391686853"},{"@type":"NRID","@value":"9000402032476"},{"@type":"NRID","@value":"9000415345134"},{"@type":"NRID","@value":"9000413253783"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0152799"}],"foaf:name":[{"@value":"Takashi 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Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00027820"},{"@type":"EISSN","@value":"15512916"}],"prism:publicationName":[{"@value":"Journal of the American Ceramic Society"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2016-12-21","prism:volume":"100","prism:number":"3","prism:startingPage":"1037","prism:endingPage":"1043"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjace.14700"},{"@id":"https://ceramics.onlinelibrary.wiley.com/doi/pdf/10.1111/jace.14700"}],"createdAt":"2016-12-21","modifiedAt":"2025-11-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002214402053632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Low‐Temperature High‐Rate Capabilities of Lithium Batteries via Polarization‐Assisted Ion 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