Dynamical Superconducting Order Parameter Domains in Sr sub(2)RuO sub(4)
We present direct evidence for complex p-wave order parameter symmetry and the presence of dynamical chiral order parameter domains of the form p sub(x) c ip sub(y) in the ruthenate superconductor Sr sub(2)RuO sub(4). The domain structure creates differences in the magnetic field modulation of the c...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2006-11, Vol.314 (5803), p.1267-1271 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Kidwingira, Francoise Strand, J D Van Harlingen, DJ Maeno, Yoshiteru |
| description | We present direct evidence for complex p-wave order parameter symmetry and the presence of dynamical chiral order parameter domains of the form p sub(x) c ip sub(y) in the ruthenate superconductor Sr sub(2)RuO sub(4). The domain structure creates differences in the magnetic field modulation of the critical current of Josephson junctions fabricated on orthogonal faces of Sr sub(2)RuO sub(4) single crystals. Transitions between the chiral states of a domain or the motion of domain walls separating them generates telegraph noise in the critical current as a function of magnetic field or time and is responsible for hysteresis observed in field sweeps of the critical current. The presence of such domains confirms the p-wave triplet spin and complex (broken time-reversal symmetry) nature of the superconducting pairing state in Sr sub(2)RuO sub(4). |
| doi_str_mv | 10.1126/science.1133239 |
| format | Article |
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The domain structure creates differences in the magnetic field modulation of the critical current of Josephson junctions fabricated on orthogonal faces of Sr sub(2)RuO sub(4) single crystals. Transitions between the chiral states of a domain or the motion of domain walls separating them generates telegraph noise in the critical current as a function of magnetic field or time and is responsible for hysteresis observed in field sweeps of the critical current. 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The domain structure creates differences in the magnetic field modulation of the critical current of Josephson junctions fabricated on orthogonal faces of Sr sub(2)RuO sub(4) single crystals. Transitions between the chiral states of a domain or the motion of domain walls separating them generates telegraph noise in the critical current as a function of magnetic field or time and is responsible for hysteresis observed in field sweeps of the critical current. The presence of such domains confirms the p-wave triplet spin and complex (broken time-reversal symmetry) nature of the superconducting pairing state in Sr sub(2)RuO sub(4).</description><subject>Domain walls</subject><subject>Hysteresis</subject><subject>Josephson junctions</subject><subject>Magnetic fields</subject><subject>Modulation</subject><subject>Order parameters</subject><subject>Superconductivity</subject><subject>Symmetry</subject><issn>0036-8075</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqVirsOwiAUQBk0sT5mV0Y7VKHY12w1bjXW3SBeDaYF5ZbBv7cx_oDTOSc5hMw5W3IepytUGoyCPoSIRTEgAWMijXKWJSMyRnwwxoqkEAHZl28jW61kQ2v_BKesuXrVaXOnlbuCowfpZAtdb6VtpTZItaG1o-gvizg8-upr63BKhjfZIMx-nJDFbnva7KOnsy8P2J1bjQqaRhqwHs-c5THPM5Gl4o_1A--7RDo</recordid><startdate>20061124</startdate><enddate>20061124</enddate><creator>Kidwingira, Francoise</creator><creator>Strand, J D</creator><creator>Van Harlingen, DJ</creator><creator>Maeno, Yoshiteru</creator><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20061124</creationdate><title>Dynamical Superconducting Order Parameter Domains in Sr sub(2)RuO sub(4)</title><author>Kidwingira, Francoise ; Strand, J D ; Van Harlingen, DJ ; Maeno, Yoshiteru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_10821873763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Domain walls</topic><topic>Hysteresis</topic><topic>Josephson junctions</topic><topic>Magnetic fields</topic><topic>Modulation</topic><topic>Order parameters</topic><topic>Superconductivity</topic><topic>Symmetry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kidwingira, Francoise</creatorcontrib><creatorcontrib>Strand, J D</creatorcontrib><creatorcontrib>Van Harlingen, DJ</creatorcontrib><creatorcontrib>Maeno, Yoshiteru</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Science (American Association for the Advancement of Science)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kidwingira, Francoise</au><au>Strand, J D</au><au>Van Harlingen, DJ</au><au>Maeno, Yoshiteru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dynamical Superconducting Order Parameter Domains in Sr sub(2)RuO sub(4)</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><date>2006-11-24</date><risdate>2006</risdate><volume>314</volume><issue>5803</issue><spage>1267</spage><epage>1271</epage><pages>1267-1271</pages><issn>0036-8075</issn><abstract>We present direct evidence for complex p-wave order parameter symmetry and the presence of dynamical chiral order parameter domains of the form p sub(x) c ip sub(y) in the ruthenate superconductor Sr sub(2)RuO sub(4). The domain structure creates differences in the magnetic field modulation of the critical current of Josephson junctions fabricated on orthogonal faces of Sr sub(2)RuO sub(4) single crystals. Transitions between the chiral states of a domain or the motion of domain walls separating them generates telegraph noise in the critical current as a function of magnetic field or time and is responsible for hysteresis observed in field sweeps of the critical current. The presence of such domains confirms the p-wave triplet spin and complex (broken time-reversal symmetry) nature of the superconducting pairing state in Sr sub(2)RuO sub(4).</abstract><doi>10.1126/science.1133239</doi></addata></record> |
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| ispartof | Science (American Association for the Advancement of Science), 2006-11, Vol.314 (5803), p.1267-1271 |
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| language | eng |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Domain walls Hysteresis Josephson junctions Magnetic fields Modulation Order parameters Superconductivity Symmetry |
| title | Dynamical Superconducting Order Parameter Domains in Sr sub(2)RuO sub(4) |
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