Dielectric properties and structural features of barium-iron phosphate glasses
The dielectric constant of barium-iron phosphate glasses with the general composition (40− x)BaO · xFe 2O 3 · (60− x)P 2O 5 has been investigated at two fixed frequencies (100 kHz and 9.0 GHz). The dielectric constant measured using microwave technique, and the ratio O/P of these glasses increase wi...
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| Veröffentlicht in: | Journal of non-crystalline solids 2004-05, Vol.336 (3), p.159-164 |
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| container_issue | 3 |
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| container_title | Journal of non-crystalline solids |
| container_volume | 336 |
| creator | Bergo, P Reis, S.T Pontuschka, W.M Prison, J.M Motta, C.C |
| description | The dielectric constant of barium-iron phosphate glasses with the general composition (40−
x)BaO
·
xFe
2O
3
·
(60−
x)P
2O
5 has been investigated at two fixed frequencies (100 kHz and 9.0 GHz). The dielectric constant measured using microwave technique, and the ratio O/P of these glasses increase with increasing Fe
2O
3 content. The structure and valence states of the iron ions in these glasses were investigated using Mössbauer spectroscopy, infrared spectroscopy and differential thermal analysis. Both Fe(II) and Fe(III) ions present in these glasses in octahedral coordination act as permanent dipoles, and the increase of the iron concentration increase these permanent dipoles, contributing to the dielectric constant. |
| doi_str_mv | 10.1016/j.jnoncrysol.2004.02.008 |
| format | Article |
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x)BaO
·
xFe
2O
3
·
(60−
x)P
2O
5 has been investigated at two fixed frequencies (100 kHz and 9.0 GHz). The dielectric constant measured using microwave technique, and the ratio O/P of these glasses increase with increasing Fe
2O
3 content. The structure and valence states of the iron ions in these glasses were investigated using Mössbauer spectroscopy, infrared spectroscopy and differential thermal analysis. Both Fe(II) and Fe(III) ions present in these glasses in octahedral coordination act as permanent dipoles, and the increase of the iron concentration increase these permanent dipoles, contributing to the dielectric constant.</description><identifier>ISSN: 0022-3093</identifier><identifier>EISSN: 1873-4812</identifier><identifier>DOI: 10.1016/j.jnoncrysol.2004.02.008</identifier><identifier>CODEN: JNCSBJ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Dielectric properties of solids and liquids ; Dielectrics, piezoelectrics, and ferroelectrics and their properties ; Exact sciences and technology ; Magnetic resonances and relaxations in condensed matter, mössbauer effect ; Mössbauer effect; other γ-ray spectroscopy ; Permittivity (dielectric function) ; Physics</subject><ispartof>Journal of non-crystalline solids, 2004-05, Vol.336 (3), p.159-164</ispartof><rights>2004 Elsevier B.V.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-e55c5b1b3a1ab7728123a1cfc108ddc6d8e4780f61ace693c846a604b72c98323</citedby><cites>FETCH-LOGICAL-c474t-e55c5b1b3a1ab7728123a1cfc108ddc6d8e4780f61ace693c846a604b72c98323</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022309304000663$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15684595$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bergo, P</creatorcontrib><creatorcontrib>Reis, S.T</creatorcontrib><creatorcontrib>Pontuschka, W.M</creatorcontrib><creatorcontrib>Prison, J.M</creatorcontrib><creatorcontrib>Motta, C.C</creatorcontrib><title>Dielectric properties and structural features of barium-iron phosphate glasses</title><title>Journal of non-crystalline solids</title><description>The dielectric constant of barium-iron phosphate glasses with the general composition (40−
x)BaO
·
xFe
2O
3
·
(60−
x)P
2O
5 has been investigated at two fixed frequencies (100 kHz and 9.0 GHz). The dielectric constant measured using microwave technique, and the ratio O/P of these glasses increase with increasing Fe
2O
3 content. The structure and valence states of the iron ions in these glasses were investigated using Mössbauer spectroscopy, infrared spectroscopy and differential thermal analysis. Both Fe(II) and Fe(III) ions present in these glasses in octahedral coordination act as permanent dipoles, and the increase of the iron concentration increase these permanent dipoles, contributing to the dielectric constant.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Dielectric properties of solids and liquids</subject><subject>Dielectrics, piezoelectrics, and ferroelectrics and their properties</subject><subject>Exact sciences and technology</subject><subject>Magnetic resonances and relaxations in condensed matter, mössbauer effect</subject><subject>Mössbauer effect; other γ-ray spectroscopy</subject><subject>Permittivity (dielectric function)</subject><subject>Physics</subject><issn>0022-3093</issn><issn>1873-4812</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNkTtPwzAQgC0EEqXwH7LAlmA7ieOOUJ5SBQvMlnO5UFdpHHwJEv8eV63ECPbg0-m7hz4zlgieCS7U9Sbb9L6H8E2-yyTnRcZlxrk-YjOhqzwttJDHbMa5lGnOF_kpOyPa8HiqXM_Yy53DDmEMDpIh-AHD6JAS2zcJjWGCcQq2S1q0MYh53ya1DW7api74PhnWnoa1HTH56CwR0jk7aW1HeHF45-z94f5t-ZSuXh-flzerFIqqGFMsSyhrUedW2LqqZNwxhtCC4LppQDUai0rzVgkLqBY56EJZxYu6krDQuczn7GrfN-78OSGNZusIsOtsj34iEzuW8ar_gFIrWUVQ70EInihga4bgtjZ8G8HNzrTZmF_TZmfacGmi6Vh6eZhhCWzXBtuDo9_6UumiXJSRu91zGM18OQyGwGEP2LgQv8A03v097Aeh05rk</recordid><startdate>20040515</startdate><enddate>20040515</enddate><creator>Bergo, P</creator><creator>Reis, S.T</creator><creator>Pontuschka, W.M</creator><creator>Prison, J.M</creator><creator>Motta, C.C</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7QQ</scope></search><sort><creationdate>20040515</creationdate><title>Dielectric properties and structural features of barium-iron phosphate glasses</title><author>Bergo, P ; Reis, S.T ; Pontuschka, W.M ; Prison, J.M ; Motta, C.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-e55c5b1b3a1ab7728123a1cfc108ddc6d8e4780f61ace693c846a604b72c98323</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Dielectric properties of solids and liquids</topic><topic>Dielectrics, piezoelectrics, and ferroelectrics and their properties</topic><topic>Exact sciences and technology</topic><topic>Magnetic resonances and relaxations in condensed matter, mössbauer effect</topic><topic>Mössbauer effect; other γ-ray spectroscopy</topic><topic>Permittivity (dielectric function)</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bergo, P</creatorcontrib><creatorcontrib>Reis, S.T</creatorcontrib><creatorcontrib>Pontuschka, W.M</creatorcontrib><creatorcontrib>Prison, J.M</creatorcontrib><creatorcontrib>Motta, C.C</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Ceramic Abstracts</collection><jtitle>Journal of non-crystalline solids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bergo, P</au><au>Reis, S.T</au><au>Pontuschka, W.M</au><au>Prison, J.M</au><au>Motta, C.C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dielectric properties and structural features of barium-iron phosphate glasses</atitle><jtitle>Journal of non-crystalline solids</jtitle><date>2004-05-15</date><risdate>2004</risdate><volume>336</volume><issue>3</issue><spage>159</spage><epage>164</epage><pages>159-164</pages><issn>0022-3093</issn><eissn>1873-4812</eissn><coden>JNCSBJ</coden><abstract>The dielectric constant of barium-iron phosphate glasses with the general composition (40−
x)BaO
·
xFe
2O
3
·
(60−
x)P
2O
5 has been investigated at two fixed frequencies (100 kHz and 9.0 GHz). The dielectric constant measured using microwave technique, and the ratio O/P of these glasses increase with increasing Fe
2O
3 content. The structure and valence states of the iron ions in these glasses were investigated using Mössbauer spectroscopy, infrared spectroscopy and differential thermal analysis. Both Fe(II) and Fe(III) ions present in these glasses in octahedral coordination act as permanent dipoles, and the increase of the iron concentration increase these permanent dipoles, contributing to the dielectric constant.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnoncrysol.2004.02.008</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of non-crystalline solids, 2004-05, Vol.336 (3), p.159-164 |
| issn | 0022-3093 1873-4812 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28151516 |
| source | Elsevier ScienceDirect Journals |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric properties of solids and liquids Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Magnetic resonances and relaxations in condensed matter, mössbauer effect Mössbauer effect other γ-ray spectroscopy Permittivity (dielectric function) Physics |
| title | Dielectric properties and structural features of barium-iron phosphate glasses |
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