Attempts to prepare vanadium based oxide superconductors
Preparation of a vanadium-based oxide compound of the type YBa2Cu3Ox was investigated. Its crystal structure and electrical properties were studied. Preparation was attempted in three different ways. The XRD patterns of all the products were surprisingly identical; they revealed an orthorhombic unit...
Gespeichert in:
| Veröffentlicht in: | Journal of materials science letters 1990-03, Vol.9 (3), p.277-278 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 278 |
|---|---|
| container_issue | 3 |
| container_start_page | 277 |
| container_title | Journal of materials science letters |
| container_volume | 9 |
| creator | WANI, B. N RAO, U. R. K VENKATESWARLU, K. S |
| description | Preparation of a vanadium-based oxide compound of the type YBa2Cu3Ox was investigated. Its crystal structure and electrical properties were studied. Preparation was attempted in three different ways. The XRD patterns of all the products were surprisingly identical; they revealed an orthorhombic unit cell, and the d-values are tabulated. The oxidation state of vanadium in the compound was established at +3, and the formula could be written as YBa2V3O8. In spite of the fact that the new compound was very similar to 1, 2, 3 oxide in respect of perovskite structure, t-factor and orthorhombic unit cell of comparable dimensions, it does not show metallic characteristics let alone superconducting behaviour. This is probably due to the fact that vanadium stabilises in a single oxidation state of +3 in this compound whereas the requirements for superconductivity appears to be the ability of a valence state to disproportionate into a lower and a higher one. 4 refs. |
| doi_str_mv | 10.1007/BF00725823 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_25072678</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>25072678</sourcerecordid><originalsourceid>FETCH-LOGICAL-c289t-962a3b3656ba30c9c69fde712f5e52967f9480c67b717577ce3bff1b89dd55313</originalsourceid><addsrcrecordid>eNpFkEtLBDEQhIMouK5e_AVzEA_CaB6b13FdXBUWvOh5yCQdGJmX6Yzov3dkF710QfNVQRUhl4zeMkr13f12vlwaLo7IgkktypVh7JgsKFesNJSbU3KG-E7p_JCrBTHrnKEbMxZ5KMYEo0tQfLrehWbqitohhGL4agIUOI2Q_NCHyech4Tk5ia5FuDjokrxtH143T-Xu5fF5s96VnhubS6u4E7VQUtVOUG-9sjGAZjxKkNwqHe3KUK90rZmWWnsQdYysNjYEKQUTS3K9zx3T8DEB5qpr0EPbuh6GCSsu58JKmxm82YM-DYgJYjWmpnPpu2K0-h2n-h9nhq8OqQ69a2NyvW_wz6GMFVIp8QNL6WK_</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>25072678</pqid></control><display><type>article</type><title>Attempts to prepare vanadium based oxide superconductors</title><source>SpringerLink Journals</source><creator>WANI, B. N ; RAO, U. R. K ; VENKATESWARLU, K. S</creator><creatorcontrib>WANI, B. N ; RAO, U. R. K ; VENKATESWARLU, K. S</creatorcontrib><description>Preparation of a vanadium-based oxide compound of the type YBa2Cu3Ox was investigated. Its crystal structure and electrical properties were studied. Preparation was attempted in three different ways. The XRD patterns of all the products were surprisingly identical; they revealed an orthorhombic unit cell, and the d-values are tabulated. The oxidation state of vanadium in the compound was established at +3, and the formula could be written as YBa2V3O8. In spite of the fact that the new compound was very similar to 1, 2, 3 oxide in respect of perovskite structure, t-factor and orthorhombic unit cell of comparable dimensions, it does not show metallic characteristics let alone superconducting behaviour. This is probably due to the fact that vanadium stabilises in a single oxidation state of +3 in this compound whereas the requirements for superconductivity appears to be the ability of a valence state to disproportionate into a lower and a higher one. 4 refs.</description><identifier>ISSN: 0261-8028</identifier><identifier>EISSN: 1573-4811</identifier><identifier>DOI: 10.1007/BF00725823</identifier><identifier>CODEN: JMSLD5</identifier><language>eng</language><publisher>Dordrecht: Kluwer Academic Publishers</publisher><subject>Chemistry ; Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) ; Exact sciences and technology ; Inorganic chemistry and origins of life ; Preparations and properties</subject><ispartof>Journal of materials science letters, 1990-03, Vol.9 (3), p.277-278</ispartof><rights>1990 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c289t-962a3b3656ba30c9c69fde712f5e52967f9480c67b717577ce3bff1b89dd55313</citedby><cites>FETCH-LOGICAL-c289t-962a3b3656ba30c9c69fde712f5e52967f9480c67b717577ce3bff1b89dd55313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6893566$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>WANI, B. N</creatorcontrib><creatorcontrib>RAO, U. R. K</creatorcontrib><creatorcontrib>VENKATESWARLU, K. S</creatorcontrib><title>Attempts to prepare vanadium based oxide superconductors</title><title>Journal of materials science letters</title><description>Preparation of a vanadium-based oxide compound of the type YBa2Cu3Ox was investigated. Its crystal structure and electrical properties were studied. Preparation was attempted in three different ways. The XRD patterns of all the products were surprisingly identical; they revealed an orthorhombic unit cell, and the d-values are tabulated. The oxidation state of vanadium in the compound was established at +3, and the formula could be written as YBa2V3O8. In spite of the fact that the new compound was very similar to 1, 2, 3 oxide in respect of perovskite structure, t-factor and orthorhombic unit cell of comparable dimensions, it does not show metallic characteristics let alone superconducting behaviour. This is probably due to the fact that vanadium stabilises in a single oxidation state of +3 in this compound whereas the requirements for superconductivity appears to be the ability of a valence state to disproportionate into a lower and a higher one. 4 refs.</description><subject>Chemistry</subject><subject>Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)</subject><subject>Exact sciences and technology</subject><subject>Inorganic chemistry and origins of life</subject><subject>Preparations and properties</subject><issn>0261-8028</issn><issn>1573-4811</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLBDEQhIMouK5e_AVzEA_CaB6b13FdXBUWvOh5yCQdGJmX6Yzov3dkF710QfNVQRUhl4zeMkr13f12vlwaLo7IgkktypVh7JgsKFesNJSbU3KG-E7p_JCrBTHrnKEbMxZ5KMYEo0tQfLrehWbqitohhGL4agIUOI2Q_NCHyech4Tk5ia5FuDjokrxtH143T-Xu5fF5s96VnhubS6u4E7VQUtVOUG-9sjGAZjxKkNwqHe3KUK90rZmWWnsQdYysNjYEKQUTS3K9zx3T8DEB5qpr0EPbuh6GCSsu58JKmxm82YM-DYgJYjWmpnPpu2K0-h2n-h9nhq8OqQ69a2NyvW_wz6GMFVIp8QNL6WK_</recordid><startdate>19900301</startdate><enddate>19900301</enddate><creator>WANI, B. N</creator><creator>RAO, U. R. K</creator><creator>VENKATESWARLU, K. S</creator><general>Kluwer Academic Publishers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19900301</creationdate><title>Attempts to prepare vanadium based oxide superconductors</title><author>WANI, B. N ; RAO, U. R. K ; VENKATESWARLU, K. S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c289t-962a3b3656ba30c9c69fde712f5e52967f9480c67b717577ce3bff1b89dd55313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Chemistry</topic><topic>Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)</topic><topic>Exact sciences and technology</topic><topic>Inorganic chemistry and origins of life</topic><topic>Preparations and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WANI, B. N</creatorcontrib><creatorcontrib>RAO, U. R. K</creatorcontrib><creatorcontrib>VENKATESWARLU, K. S</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials science letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WANI, B. N</au><au>RAO, U. R. K</au><au>VENKATESWARLU, K. S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Attempts to prepare vanadium based oxide superconductors</atitle><jtitle>Journal of materials science letters</jtitle><date>1990-03-01</date><risdate>1990</risdate><volume>9</volume><issue>3</issue><spage>277</spage><epage>278</epage><pages>277-278</pages><issn>0261-8028</issn><eissn>1573-4811</eissn><coden>JMSLD5</coden><abstract>Preparation of a vanadium-based oxide compound of the type YBa2Cu3Ox was investigated. Its crystal structure and electrical properties were studied. Preparation was attempted in three different ways. The XRD patterns of all the products were surprisingly identical; they revealed an orthorhombic unit cell, and the d-values are tabulated. The oxidation state of vanadium in the compound was established at +3, and the formula could be written as YBa2V3O8. In spite of the fact that the new compound was very similar to 1, 2, 3 oxide in respect of perovskite structure, t-factor and orthorhombic unit cell of comparable dimensions, it does not show metallic characteristics let alone superconducting behaviour. This is probably due to the fact that vanadium stabilises in a single oxidation state of +3 in this compound whereas the requirements for superconductivity appears to be the ability of a valence state to disproportionate into a lower and a higher one. 4 refs.</abstract><cop>Dordrecht</cop><pub>Kluwer Academic Publishers</pub><doi>10.1007/BF00725823</doi><tpages>2</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0261-8028 |
| ispartof | Journal of materials science letters, 1990-03, Vol.9 (3), p.277-278 |
| issn | 0261-8028 1573-4811 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_25072678 |
| source | SpringerLink Journals |
| subjects | Chemistry Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) Exact sciences and technology Inorganic chemistry and origins of life Preparations and properties |
| title | Attempts to prepare vanadium based oxide superconductors |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-15T09%3A45%3A21IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Attempts%20to%20prepare%20vanadium%20based%20oxide%20superconductors&rft.jtitle=Journal%20of%20materials%20science%20letters&rft.au=WANI,%20B.%20N&rft.date=1990-03-01&rft.volume=9&rft.issue=3&rft.spage=277&rft.epage=278&rft.pages=277-278&rft.issn=0261-8028&rft.eissn=1573-4811&rft.coden=JMSLD5&rft_id=info:doi/10.1007/BF00725823&rft_dat=%3Cproquest_cross%3E25072678%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=25072678&rft_id=info:pmid/&rfr_iscdi=true |