Hall conductivity dominated by fluctuations near the superconducting transition in disordered thin films
We have studied the Hall effect in superconducting tantalum nitride films. We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T sub(c) and magnetic fields well above the upper critical field H sub(c2) (0). This con...
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Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-07, Vol.86 (1), Article 014514 |
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container_title | Physical review. B, Condensed matter and materials physics |
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creator | Breznay, Nicholas P. Michaeli, Karen Tikhonov, Konstantin S. Finkel'stein, Alexander M. Tendulkar, Mihir Kapitulnik, Aharon |
description | We have studied the Hall effect in superconducting tantalum nitride films. We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T sub(c) and magnetic fields well above the upper critical field H sub(c2) (0). This contribution arises from Aslamazov-Larkin superconducting fluctuations, and we find quantitative agreement between our data and recent theoretical analysis based on time-dependent Ginzburg-Landau theory. |
doi_str_mv | 10.1103/PhysRevB.86.014514 |
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We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T sub(c) and magnetic fields well above the upper critical field H sub(c2) (0). This contribution arises from Aslamazov-Larkin superconducting fluctuations, and we find quantitative agreement between our data and recent theoretical analysis based on time-dependent Ginzburg-Landau theory.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PhysRevB.86.014514</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Condensed matter ; Fluctuation ; Hall effect ; Magnetic fields ; Superconductivity ; Tantalum nitrides ; Thin films</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</title><description>We have studied the Hall effect in superconducting tantalum nitride films. We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T sub(c) and magnetic fields well above the upper critical field H sub(c2) (0). This contribution arises from Aslamazov-Larkin superconducting fluctuations, and we find quantitative agreement between our data and recent theoretical analysis based on time-dependent Ginzburg-Landau theory.</description><subject>Condensed matter</subject><subject>Fluctuation</subject><subject>Hall effect</subject><subject>Magnetic fields</subject><subject>Superconductivity</subject><subject>Tantalum nitrides</subject><subject>Thin films</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNo1kMtKxDAUhosoOI6-gKvgyk3HXNo0WeqgjjCgiIK7kKaJjbTpmKQDfXsz1FmdC9_5OPxZdo3gCiFI7t7aKbzr_cOK0RVERYmKk2yByhLmmJRfp6mHnOUQYXSeXYTwAxPEC7zI2o3sOqAG14wq2r2NE2iG3joZdQPqCZgu7UcZ7eACcFp6EFsNwrjT_njkvkH00gV7gIB1oLFh8I32yRDbNBvb9eEyOzOyC_rqvy6zz6fHj_Um374-v6zvt7kqUBVzTHldGQwNZ9hU3BipcV0SyqqGQlxKBCWsCWKUFNRw2vASU9woYipVG8YKssxuZu8QohVB2ahVm151WkWRssKMVwm6naGdH35HHaLobVC666TTwxgEqiCvioITklA8o8oPIXhtxM7bXvpJIHjwEXHMXjAq5uzJH0JmewE</recordid><startdate>20120713</startdate><enddate>20120713</enddate><creator>Breznay, Nicholas P.</creator><creator>Michaeli, Karen</creator><creator>Tikhonov, Konstantin S.</creator><creator>Finkel'stein, Alexander M.</creator><creator>Tendulkar, Mihir</creator><creator>Kapitulnik, Aharon</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20120713</creationdate><title>Hall conductivity dominated by fluctuations near the superconducting transition in disordered thin films</title><author>Breznay, Nicholas P. ; Michaeli, Karen ; Tikhonov, Konstantin S. ; Finkel'stein, Alexander M. ; Tendulkar, Mihir ; Kapitulnik, Aharon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-269b7f20f982f79ffae2b53687d6025a10a0b3186346f96d95262dc3f7cbf8843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Condensed matter</topic><topic>Fluctuation</topic><topic>Hall effect</topic><topic>Magnetic fields</topic><topic>Superconductivity</topic><topic>Tantalum nitrides</topic><topic>Thin films</topic><toplevel>online_resources</toplevel><creatorcontrib>Breznay, Nicholas P.</creatorcontrib><creatorcontrib>Michaeli, Karen</creatorcontrib><creatorcontrib>Tikhonov, Konstantin S.</creatorcontrib><creatorcontrib>Finkel'stein, Alexander M.</creatorcontrib><creatorcontrib>Tendulkar, Mihir</creatorcontrib><creatorcontrib>Kapitulnik, Aharon</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physical review. 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We find a large contribution to the Hall conductivity near the superconducting transition, which we can track to temperatures well above T sub(c) and magnetic fields well above the upper critical field H sub(c2) (0). This contribution arises from Aslamazov-Larkin superconducting fluctuations, and we find quantitative agreement between our data and recent theoretical analysis based on time-dependent Ginzburg-Landau theory.</abstract><cop>United States</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevB.86.014514</doi><oa>free_for_read</oa></addata></record> |
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subjects | Condensed matter Fluctuation Hall effect Magnetic fields Superconductivity Tantalum nitrides Thin films |
title | Hall conductivity dominated by fluctuations near the superconducting transition in disordered thin films |
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