Enhancing the nonlinear thermoelectric response of a correlated quantum dot in the Kondo regime by asymmetrical coupling to the leads
We study the low-temperature properties of the differential response of the current to a temperature gradient at finite voltage in a single-level quantum dot including electron-electron interaction, nonsymmetric couplings to the leads, and nonlinear effects. The calculated response is significantly...
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| Veröffentlicht in: | Physical review. B 2018-04, Vol.97 (16), Article 165433 |
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| container_title | Physical review. B |
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| creator | Pérez Daroca, Diego Roura-Bas, Pablo Aligia, Armando A. |
| description | We study the low-temperature properties of the differential response of the current to a temperature gradient at finite voltage in a single-level quantum dot including electron-electron interaction, nonsymmetric couplings to the leads, and nonlinear effects. The calculated response is significantly enhanced in setups with large asymmetries between the tunnel couplings. In the investigated range of voltages and temperatures with corresponding energies up to several times the Kondo energy scale, the maximum response is enhanced nearly an order of magnitude with respect to symmetric coupling to the leads. |
| doi_str_mv | 10.1103/PhysRevB.97.165433 |
| format | Article |
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In the investigated range of voltages and temperatures with corresponding energies up to several times the Kondo energy scale, the maximum response is enhanced nearly an order of magnitude with respect to symmetric coupling to the leads.</description><subject>Couplings</subject><subject>Nonlinear response</subject><subject>Quantum dots</subject><subject>Temperature gradients</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kEtLw0AUhYMoWGr_gKsB16nzaDKZpZb6wIIiug43MzdtSjKTziRCfoD_27RVV_fBOd-BE0XXjM4Zo-L2bTuEd_y6nys5Z2myEOIsmvBFqmKlUnX-vyf0MpqFsKOUspQqSdUk-l7ZLVhd2Q3ptkiss3VlEfzh8o3DGnXnK008htbZgMSVBIh23mMNHRqy78F2fUOM60hlj5AXZ40bHZuqQVIMBMLQNHjAQD1a-7Y-xrmjuEYw4Sq6KKEOOPud0-jzYfWxfIrXr4_Py7t1rLlMurgEI8AUgJzyDIQGzcoMaZEprXjGFFJm0kIvhJJi_IKkEgVDRU2pKWgjptHNidt6t-8xdPnO9d6OkTlnXDDJZZqMKn5Sae9C8Fjmra8a8EPOaH5oPP9rPFcyPzUufgDfBHlS</recordid><startdate>20180425</startdate><enddate>20180425</enddate><creator>Pérez Daroca, Diego</creator><creator>Roura-Bas, Pablo</creator><creator>Aligia, Armando A.</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></search><sort><creationdate>20180425</creationdate><title>Enhancing the nonlinear thermoelectric response of a correlated quantum dot in the Kondo regime by asymmetrical coupling to the leads</title><author>Pérez Daroca, Diego ; Roura-Bas, Pablo ; Aligia, Armando A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-fad3adbae2028a3cac1f8e0b89c92819e01d6bc439730b8a707e31e90dfc0acd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Couplings</topic><topic>Nonlinear response</topic><topic>Quantum dots</topic><topic>Temperature gradients</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pérez Daroca, Diego</creatorcontrib><creatorcontrib>Roura-Bas, Pablo</creatorcontrib><creatorcontrib>Aligia, Armando A.</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><jtitle>Physical review. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pérez Daroca, Diego</au><au>Roura-Bas, Pablo</au><au>Aligia, Armando A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancing the nonlinear thermoelectric response of a correlated quantum dot in the Kondo regime by asymmetrical coupling to the leads</atitle><jtitle>Physical review. B</jtitle><date>2018-04-25</date><risdate>2018</risdate><volume>97</volume><issue>16</issue><artnum>165433</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>We study the low-temperature properties of the differential response of the current to a temperature gradient at finite voltage in a single-level quantum dot including electron-electron interaction, nonsymmetric couplings to the leads, and nonlinear effects. The calculated response is significantly enhanced in setups with large asymmetries between the tunnel couplings. In the investigated range of voltages and temperatures with corresponding energies up to several times the Kondo energy scale, the maximum response is enhanced nearly an order of magnitude with respect to symmetric coupling to the leads.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevB.97.165433</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | Physical review. B, 2018-04, Vol.97 (16), Article 165433 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Couplings Nonlinear response Quantum dots Temperature gradients |
| title | Enhancing the nonlinear thermoelectric response of a correlated quantum dot in the Kondo regime by asymmetrical coupling to the leads |
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