Possibility of superconductivity at 65°C in Sr-Ba-Y-Cu-O system
Transition to a zero-resistance state at 65°C (338 K) was observd in a Sr-Ba-Y-Cu-O system for the first time. A nonlinear I-V characteristic curve was observed at that temperature. The resistivity changed from 5×10 -4 Ωcm to below a measurable limit of 1×10 -8 Ωcm between 71 and 65°C. The zero-resi...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 1987-08, Vol.26 (8), p.L1413-L1415 |
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| container_end_page | L1415 |
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| container_issue | 8 |
| container_start_page | L1413 |
| container_title | Japanese Journal of Applied Physics |
| container_volume | 26 |
| creator | IHARA, H TERADA, N JO, M HIRABAYASHI, M TOKUMOTO, M KIMURA, Y MATSUBARA, T SUGISSE, R |
| description | Transition to a zero-resistance state at 65°C (338 K) was observd in a Sr-Ba-Y-Cu-O system for the first time. A nonlinear I-V characteristic curve was observed at that temperature. The resistivity changed from 5×10
-4
Ωcm to below a measurable limit of 1×10
-8
Ωcm between 71 and 65°C. The zero-resistance state reminiscent of superconductivity was continued for ten days at room temperature in air. A magnetization measurement indicated a very small volume fraction of the room temperature superconducting state, if any.
X-ray diffractogram showed almost a single phase of oxygen-deficient perovskite with a trace of unidentified phase. Photoemission measurement showed the coexistence of multivalent Cu ions and a relatively low density of state at Fermi level. The superconductivity can be interpreted by the previously proposed d-hole mechanism. |
| doi_str_mv | 10.1143/jjap.26.l1413 |
| format | Article |
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-4
Ωcm to below a measurable limit of 1×10
-8
Ωcm between 71 and 65°C. The zero-resistance state reminiscent of superconductivity was continued for ten days at room temperature in air. A magnetization measurement indicated a very small volume fraction of the room temperature superconducting state, if any.
X-ray diffractogram showed almost a single phase of oxygen-deficient perovskite with a trace of unidentified phase. Photoemission measurement showed the coexistence of multivalent Cu ions and a relatively low density of state at Fermi level. The superconductivity can be interpreted by the previously proposed d-hole mechanism.</description><identifier>ISSN: 0021-4922</identifier><identifier>EISSN: 1347-4065</identifier><identifier>DOI: 10.1143/jjap.26.l1413</identifier><identifier>CODEN: JJAPA5</identifier><language>eng</language><publisher>Tokyo: Japanese journal of applied physics</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Physics ; Properties of type I and type II superconductors ; Superconductivity ; Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)</subject><ispartof>Japanese Journal of Applied Physics, 1987-08, Vol.26 (8), p.L1413-L1415</ispartof><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c274t-1a4d94c6c01e00ba49438ae3c87f8383f1b79608d97b4ce9345805ed3c5dd9e63</citedby><cites>FETCH-LOGICAL-c274t-1a4d94c6c01e00ba49438ae3c87f8383f1b79608d97b4ce9345805ed3c5dd9e63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7643449$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>IHARA, H</creatorcontrib><creatorcontrib>TERADA, N</creatorcontrib><creatorcontrib>JO, M</creatorcontrib><creatorcontrib>HIRABAYASHI, M</creatorcontrib><creatorcontrib>TOKUMOTO, M</creatorcontrib><creatorcontrib>KIMURA, Y</creatorcontrib><creatorcontrib>MATSUBARA, T</creatorcontrib><creatorcontrib>SUGISSE, R</creatorcontrib><title>Possibility of superconductivity at 65°C in Sr-Ba-Y-Cu-O system</title><title>Japanese Journal of Applied Physics</title><description>Transition to a zero-resistance state at 65°C (338 K) was observd in a Sr-Ba-Y-Cu-O system for the first time. A nonlinear I-V characteristic curve was observed at that temperature. The resistivity changed from 5×10
-4
Ωcm to below a measurable limit of 1×10
-8
Ωcm between 71 and 65°C. The zero-resistance state reminiscent of superconductivity was continued for ten days at room temperature in air. A magnetization measurement indicated a very small volume fraction of the room temperature superconducting state, if any.
X-ray diffractogram showed almost a single phase of oxygen-deficient perovskite with a trace of unidentified phase. Photoemission measurement showed the coexistence of multivalent Cu ions and a relatively low density of state at Fermi level. The superconductivity can be interpreted by the previously proposed d-hole mechanism.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Physics</subject><subject>Properties of type I and type II superconductors</subject><subject>Superconductivity</subject><subject>Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)</subject><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNo9T8FKxDAUDKJgXT1678FratK8ps3NtbjqUtgF9eCppGkCKd22JK2wf-U3-GW2rHgaZpgZZhC6pSSiFNh908ghinnUUqDsDAWUQYqB8OQcBYTEFIOI40t05X0zU54ADdDDvvfeVra14zHsTeinQTvVd_WkRvu1iHIMefLznYe2C98cfpT4E-cT3oX-6Ed9uEYXRrZe3_zhCn1snt7zF1zsnl_zdYFVnMKIqYRagOKKUE1IJUEAy6RmKktNxjJmaJUKTrJapBUoLRgkGUl0zVRS10JztkL41KvcvNhpUw7OHqQ7lpSUy_1yu13vy5iXxXJ_9t-d_IP0SrbGyU5Z_x9KOTAAwX4BmxJaEA</recordid><startdate>19870801</startdate><enddate>19870801</enddate><creator>IHARA, H</creator><creator>TERADA, N</creator><creator>JO, M</creator><creator>HIRABAYASHI, M</creator><creator>TOKUMOTO, M</creator><creator>KIMURA, Y</creator><creator>MATSUBARA, T</creator><creator>SUGISSE, R</creator><general>Japanese journal of applied physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19870801</creationdate><title>Possibility of superconductivity at 65°C in Sr-Ba-Y-Cu-O system</title><author>IHARA, H ; TERADA, N ; JO, M ; HIRABAYASHI, M ; TOKUMOTO, M ; KIMURA, Y ; MATSUBARA, T ; SUGISSE, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c274t-1a4d94c6c01e00ba49438ae3c87f8383f1b79608d97b4ce9345805ed3c5dd9e63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Physics</topic><topic>Properties of type I and type II superconductors</topic><topic>Superconductivity</topic><topic>Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>IHARA, H</creatorcontrib><creatorcontrib>TERADA, N</creatorcontrib><creatorcontrib>JO, M</creatorcontrib><creatorcontrib>HIRABAYASHI, M</creatorcontrib><creatorcontrib>TOKUMOTO, M</creatorcontrib><creatorcontrib>KIMURA, Y</creatorcontrib><creatorcontrib>MATSUBARA, T</creatorcontrib><creatorcontrib>SUGISSE, R</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>IHARA, H</au><au>TERADA, N</au><au>JO, M</au><au>HIRABAYASHI, M</au><au>TOKUMOTO, M</au><au>KIMURA, Y</au><au>MATSUBARA, T</au><au>SUGISSE, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Possibility of superconductivity at 65°C in Sr-Ba-Y-Cu-O system</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><date>1987-08-01</date><risdate>1987</risdate><volume>26</volume><issue>8</issue><spage>L1413</spage><epage>L1415</epage><pages>L1413-L1415</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><coden>JJAPA5</coden><abstract>Transition to a zero-resistance state at 65°C (338 K) was observd in a Sr-Ba-Y-Cu-O system for the first time. A nonlinear I-V characteristic curve was observed at that temperature. The resistivity changed from 5×10
-4
Ωcm to below a measurable limit of 1×10
-8
Ωcm between 71 and 65°C. The zero-resistance state reminiscent of superconductivity was continued for ten days at room temperature in air. A magnetization measurement indicated a very small volume fraction of the room temperature superconducting state, if any.
X-ray diffractogram showed almost a single phase of oxygen-deficient perovskite with a trace of unidentified phase. Photoemission measurement showed the coexistence of multivalent Cu ions and a relatively low density of state at Fermi level. The superconductivity can be interpreted by the previously proposed d-hole mechanism.</abstract><cop>Tokyo</cop><pub>Japanese journal of applied physics</pub><doi>10.1143/jjap.26.l1413</doi></addata></record> |
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| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Physics Properties of type I and type II superconductors Superconductivity Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) |
| title | Possibility of superconductivity at 65°C in Sr-Ba-Y-Cu-O system |
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