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Slow voltage oscillations in Ag-doped superconducting Y–Ba–Cu–O
The time effects in Ag-doped YBa 2Cu 3O 7− x sample (YBCO/Ag) were examined by means of transport relaxation measurements ( V- t curves). At well-defined values of transport current ( I), temperature ( T) and external magnetic field ( H), an abrupt rise in sample voltage was observed at the early st...
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| Published in: | Physica. C, Superconductivity Superconductivity, 2008-09, Vol.468 (15), p.1419-1423 |
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| cites | cdi_FETCH-LOGICAL-c396t-731b98390f377d5759e8056e89e81a6ea0933e1597b81ef4556f56521e4df9f03 |
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| container_title | Physica. C, Superconductivity |
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| creator | Altinkok, A. Yetiş, H. Kiliç, K. Kiliç, A. Olutaş, M. |
| description | The time effects in Ag-doped YBa
2Cu
3O
7−
x
sample (YBCO/Ag) were examined by means of transport relaxation measurements (
V-
t curves). At well-defined values of transport current (
I), temperature (
T) and external magnetic field (
H), an abrupt rise in sample voltage was observed at the early stage of the relaxation process. After reducing the initial current to a finite value, the sample voltage levels off within a very short time. The rapid voltage drops seen in
V-
t curves were attributed to the rapid dynamic reorganization of flux lines traversing the sample edges. These observations were also interpreted as an indication of doping of YBCO with Ag and easy suppression of superconducting order parameter due to the presence of Ag. In addition, we investigated the influence of bidirectional square wave (BSW) current on the evolution of
V-
t curves at different temperatures and external magnetic fields. It was observed that a nonlinear response seen in
V-
t curves to BSW current with sufficiently short periods or sufficiently low amplitude reflects itself as regular sinusoidal- type voltage oscillations, which were discussed mainly in terms of the dynamic competition between pinning and depinning. |
| doi_str_mv | 10.1016/j.physc.2008.05.131 |
| format | article |
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2Cu
3O
7−
x
sample (YBCO/Ag) were examined by means of transport relaxation measurements (
V-
t curves). At well-defined values of transport current (
I), temperature (
T) and external magnetic field (
H), an abrupt rise in sample voltage was observed at the early stage of the relaxation process. After reducing the initial current to a finite value, the sample voltage levels off within a very short time. The rapid voltage drops seen in
V-
t curves were attributed to the rapid dynamic reorganization of flux lines traversing the sample edges. These observations were also interpreted as an indication of doping of YBCO with Ag and easy suppression of superconducting order parameter due to the presence of Ag. In addition, we investigated the influence of bidirectional square wave (BSW) current on the evolution of
V-
t curves at different temperatures and external magnetic fields. It was observed that a nonlinear response seen in
V-
t curves to BSW current with sufficiently short periods or sufficiently low amplitude reflects itself as regular sinusoidal- type voltage oscillations, which were discussed mainly in terms of the dynamic competition between pinning and depinning.</description><identifier>ISSN: 0921-4534</identifier><identifier>EISSN: 1873-2143</identifier><identifier>DOI: 10.1016/j.physc.2008.05.131</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; COPPER OXIDE ; DOPING ; Electric potential ; Exact sciences and technology ; Flux pinning ; MAGNETIC FIELD ; Magnetic fields ; Magnetoresistance ; Oscillations ; Physics ; Properties of type I and type II superconductors ; Silver ; SUPERCONDUCTIVITY ; SUPERCONDUCTORS ; Transport ; Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) ; Type-II superconductors ; VOLTAGE ; Vortex lattices ,flux pinning, flux creep ; YBCO superconductors ; YTTRIUM OXIDE</subject><ispartof>Physica. C, Superconductivity, 2008-09, Vol.468 (15), p.1419-1423</ispartof><rights>2008 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c396t-731b98390f377d5759e8056e89e81a6ea0933e1597b81ef4556f56521e4df9f03</citedby><cites>FETCH-LOGICAL-c396t-731b98390f377d5759e8056e89e81a6ea0933e1597b81ef4556f56521e4df9f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,780,784,789,790,23929,23930,25139,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20690392$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Altinkok, A.</creatorcontrib><creatorcontrib>Yetiş, H.</creatorcontrib><creatorcontrib>Kiliç, K.</creatorcontrib><creatorcontrib>Kiliç, A.</creatorcontrib><creatorcontrib>Olutaş, M.</creatorcontrib><title>Slow voltage oscillations in Ag-doped superconducting Y–Ba–Cu–O</title><title>Physica. C, Superconductivity</title><description>The time effects in Ag-doped YBa
2Cu
3O
7−
x
sample (YBCO/Ag) were examined by means of transport relaxation measurements (
V-
t curves). At well-defined values of transport current (
I), temperature (
T) and external magnetic field (
H), an abrupt rise in sample voltage was observed at the early stage of the relaxation process. After reducing the initial current to a finite value, the sample voltage levels off within a very short time. The rapid voltage drops seen in
V-
t curves were attributed to the rapid dynamic reorganization of flux lines traversing the sample edges. These observations were also interpreted as an indication of doping of YBCO with Ag and easy suppression of superconducting order parameter due to the presence of Ag. In addition, we investigated the influence of bidirectional square wave (BSW) current on the evolution of
V-
t curves at different temperatures and external magnetic fields. It was observed that a nonlinear response seen in
V-
t curves to BSW current with sufficiently short periods or sufficiently low amplitude reflects itself as regular sinusoidal- type voltage oscillations, which were discussed mainly in terms of the dynamic competition between pinning and depinning.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>COPPER OXIDE</subject><subject>DOPING</subject><subject>Electric potential</subject><subject>Exact sciences and technology</subject><subject>Flux pinning</subject><subject>MAGNETIC FIELD</subject><subject>Magnetic fields</subject><subject>Magnetoresistance</subject><subject>Oscillations</subject><subject>Physics</subject><subject>Properties of type I and type II superconductors</subject><subject>Silver</subject><subject>SUPERCONDUCTIVITY</subject><subject>SUPERCONDUCTORS</subject><subject>Transport</subject><subject>Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)</subject><subject>Type-II superconductors</subject><subject>VOLTAGE</subject><subject>Vortex lattices ,flux pinning, flux creep</subject><subject>YBCO superconductors</subject><subject>YTTRIUM OXIDE</subject><issn>0921-4534</issn><issn>1873-2143</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kDtOxDAQhi0EEsvCCWjSAFWCJ47juKCAFS8JiQIoqCzjTBavQhzsZBEdd-CGnAQviyiZ4p_mm4c-QvaBZkChPF5k_fN7MFlOaZVRngGDDTKBSrA0h4JtkgmVOaQFZ8U22QlhQWOBhAk5v2vdW7J07aDnmLhgbNvqwbouJLZLTudp7XqskzD26I3r6tEMtpsnj18fn2c6xmyMcbtLthrdBtz77VPycHF-P7tKb24vr2enN6lhshxSweBJVkzShglRc8ElVpSXWMUOukRNJWMIXIqnCrApOC8bXvIcsKgb2VA2JUfrvb13ryOGQb3YYDC-3KEbg5JRhuACRCQP_yUZj2cAygiyNWi8C8Fjo3pvX7R_V0DVSq5aqB-5aiVXUa6i3Dh18LteB6PbxuvO2PA3mtNSUibzyJ2sOYxWlha9ioaxM1hbj2ZQtbP_3vkGuXGR3w</recordid><startdate>20080915</startdate><enddate>20080915</enddate><creator>Altinkok, A.</creator><creator>Yetiş, H.</creator><creator>Kiliç, K.</creator><creator>Kiliç, A.</creator><creator>Olutaş, M.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7QQ</scope><scope>H8G</scope><scope>JG9</scope></search><sort><creationdate>20080915</creationdate><title>Slow voltage oscillations in Ag-doped superconducting Y–Ba–Cu–O</title><author>Altinkok, A. ; Yetiş, H. ; Kiliç, K. ; Kiliç, A. ; Olutaş, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c396t-731b98390f377d5759e8056e89e81a6ea0933e1597b81ef4556f56521e4df9f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>COPPER OXIDE</topic><topic>DOPING</topic><topic>Electric potential</topic><topic>Exact sciences and technology</topic><topic>Flux pinning</topic><topic>MAGNETIC FIELD</topic><topic>Magnetic fields</topic><topic>Magnetoresistance</topic><topic>Oscillations</topic><topic>Physics</topic><topic>Properties of type I and type II superconductors</topic><topic>Silver</topic><topic>SUPERCONDUCTIVITY</topic><topic>SUPERCONDUCTORS</topic><topic>Transport</topic><topic>Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)</topic><topic>Type-II superconductors</topic><topic>VOLTAGE</topic><topic>Vortex lattices ,flux pinning, flux creep</topic><topic>YBCO superconductors</topic><topic>YTTRIUM OXIDE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Altinkok, A.</creatorcontrib><creatorcontrib>Yetiş, H.</creatorcontrib><creatorcontrib>Kiliç, K.</creatorcontrib><creatorcontrib>Kiliç, A.</creatorcontrib><creatorcontrib>Olutaş, M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Ceramic Abstracts</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><jtitle>Physica. C, Superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Altinkok, A.</au><au>Yetiş, H.</au><au>Kiliç, K.</au><au>Kiliç, A.</au><au>Olutaş, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Slow voltage oscillations in Ag-doped superconducting Y–Ba–Cu–O</atitle><jtitle>Physica. C, Superconductivity</jtitle><date>2008-09-15</date><risdate>2008</risdate><volume>468</volume><issue>15</issue><spage>1419</spage><epage>1423</epage><pages>1419-1423</pages><issn>0921-4534</issn><eissn>1873-2143</eissn><abstract>The time effects in Ag-doped YBa
2Cu
3O
7−
x
sample (YBCO/Ag) were examined by means of transport relaxation measurements (
V-
t curves). At well-defined values of transport current (
I), temperature (
T) and external magnetic field (
H), an abrupt rise in sample voltage was observed at the early stage of the relaxation process. After reducing the initial current to a finite value, the sample voltage levels off within a very short time. The rapid voltage drops seen in
V-
t curves were attributed to the rapid dynamic reorganization of flux lines traversing the sample edges. These observations were also interpreted as an indication of doping of YBCO with Ag and easy suppression of superconducting order parameter due to the presence of Ag. In addition, we investigated the influence of bidirectional square wave (BSW) current on the evolution of
V-
t curves at different temperatures and external magnetic fields. It was observed that a nonlinear response seen in
V-
t curves to BSW current with sufficiently short periods or sufficiently low amplitude reflects itself as regular sinusoidal- type voltage oscillations, which were discussed mainly in terms of the dynamic competition between pinning and depinning.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.physc.2008.05.131</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0921-4534 |
| ispartof | Physica. C, Superconductivity, 2008-09, Vol.468 (15), p.1419-1423 |
| issn | 0921-4534 1873-2143 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_901675717 |
| source | Elsevier |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER OXIDE DOPING Electric potential Exact sciences and technology Flux pinning MAGNETIC FIELD Magnetic fields Magnetoresistance Oscillations Physics Properties of type I and type II superconductors Silver SUPERCONDUCTIVITY SUPERCONDUCTORS Transport Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) Type-II superconductors VOLTAGE Vortex lattices ,flux pinning, flux creep YBCO superconductors YTTRIUM OXIDE |
| title | Slow voltage oscillations in Ag-doped superconducting Y–Ba–Cu–O |
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