The electron and spin polarized transport in wide-voltage-ranges through colbaltporphyrin-based molecular junctions
The electron and spin polarized transport properties of Co benzene-porphyrin-benzene (BPB) molecule coupled to gold (Au) nanowires in a wide voltage range (0–3.0 V) are investigated. By successively removing the front-end Au atoms, we construct Au nanowires with different molecule-electrode contact...
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| Veröffentlicht in: | The Journal of chemical physics 2016-02, Vol.144 (8), p.084707-084707 |
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| container_end_page | 084707 |
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| container_issue | 8 |
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| container_title | The Journal of chemical physics |
| container_volume | 144 |
| creator | Cheng, Jue-Fei Yan, Qiang Zhou, Liping Han, Qin Gao, Lei |
| description | The electron and spin polarized transport properties of Co benzene-porphyrin-benzene (BPB) molecule coupled to gold (Au) nanowires in a wide voltage range (0–3.0 V) are investigated. By successively removing the front-end Au atoms, we construct Au nanowires with different molecule-electrode contact symmetries. Multiple negative differential resistance (NDR) peaks emerge at different bias voltage regions. It is found that the low-voltage NDR effect at 0.4 V can only be found in the junctions with S–Au top bindings. High-bias NDR effects intrinsic to central molecule at 2.8 V are observed in all the six structures. In particular, both the electron and spin polarized current-voltage (I–V) curves depend strongly on the contact configurations between Co-BPB molecule and the Au electrodes. And the top-binding may result in spin dependent transport properties and will be the priority selection in the design of molecular devices. |
| doi_str_mv | 10.1063/1.4942923 |
| format | Article |
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By successively removing the front-end Au atoms, we construct Au nanowires with different molecule-electrode contact symmetries. Multiple negative differential resistance (NDR) peaks emerge at different bias voltage regions. It is found that the low-voltage NDR effect at 0.4 V can only be found in the junctions with S–Au top bindings. High-bias NDR effects intrinsic to central molecule at 2.8 V are observed in all the six structures. In particular, both the electron and spin polarized current-voltage (I–V) curves depend strongly on the contact configurations between Co-BPB molecule and the Au electrodes. 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And the top-binding may result in spin dependent transport properties and will be the priority selection in the design of molecular devices.</description><subject>Benzene</subject><subject>Bias</subject><subject>Cobalt</subject><subject>Electric potential</subject><subject>Electrodes</subject><subject>Electron spin</subject><subject>Electrons</subject><subject>Gold</subject><subject>Hydrocarbons</subject><subject>Nanowires</subject><subject>Transport properties</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp90U9rFDEYBvAgit1WD34BCXhRYWrezGwyOUrRKhS81HPIn3d2Z5lNxiTTUj-9WXatoOApkPzyJDwvIa-AXQIT7Qe47FTHFW-fkBWwXjVSKPaUrBjj0CjBxBk5z3nHGAPJu-fkjAvVgoR-RfLtFilO6EqKgZrgaZ7HQOc4mTT-RE9LMiHPMRVat-9Hj81dnIrZYFMPNphp2aa4bLbUxcmaqVQ6bx_SGBprcr2_jzV8qWl0twRXxhjyC_JsMFPGl6f1gnz__On26ktz8-3669XHm8a1fVsa1wkr1WDXVnoPivfGyp57a4beKzQwdB0iCMG7YeAerDQKoeUgfOsUW0N7Qd4ec-cUfyyYi96P2eE0mYBxyRqkZJzXvg70zV90F5cU6u80Bw69UmvJqnp3VC7FnBMOek7j3qQHDUwfJqFBnyZR7etT4mL36B_l7-oreH8E2Y3FHIp5NHcx_UnSsx_-h_99-hcrfqFk</recordid><startdate>20160228</startdate><enddate>20160228</enddate><creator>Cheng, Jue-Fei</creator><creator>Yan, Qiang</creator><creator>Zhou, Liping</creator><creator>Han, Qin</creator><creator>Gao, Lei</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20160228</creationdate><title>The electron and spin polarized transport in wide-voltage-ranges through colbaltporphyrin-based molecular junctions</title><author>Cheng, Jue-Fei ; Yan, Qiang ; Zhou, Liping ; Han, Qin ; Gao, Lei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-c46b79fb5b7dd1928ab782dbaf8d9ea1f44ee16624ff2d1b7a9e13216d3c90513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Benzene</topic><topic>Bias</topic><topic>Cobalt</topic><topic>Electric potential</topic><topic>Electrodes</topic><topic>Electron spin</topic><topic>Electrons</topic><topic>Gold</topic><topic>Hydrocarbons</topic><topic>Nanowires</topic><topic>Transport properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cheng, Jue-Fei</creatorcontrib><creatorcontrib>Yan, Qiang</creatorcontrib><creatorcontrib>Zhou, Liping</creatorcontrib><creatorcontrib>Han, Qin</creatorcontrib><creatorcontrib>Gao, Lei</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cheng, Jue-Fei</au><au>Yan, Qiang</au><au>Zhou, Liping</au><au>Han, Qin</au><au>Gao, Lei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The electron and spin polarized transport in wide-voltage-ranges through colbaltporphyrin-based molecular junctions</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2016-02-28</date><risdate>2016</risdate><volume>144</volume><issue>8</issue><spage>084707</spage><epage>084707</epage><pages>084707-084707</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>The electron and spin polarized transport properties of Co benzene-porphyrin-benzene (BPB) molecule coupled to gold (Au) nanowires in a wide voltage range (0–3.0 V) are investigated. By successively removing the front-end Au atoms, we construct Au nanowires with different molecule-electrode contact symmetries. Multiple negative differential resistance (NDR) peaks emerge at different bias voltage regions. It is found that the low-voltage NDR effect at 0.4 V can only be found in the junctions with S–Au top bindings. High-bias NDR effects intrinsic to central molecule at 2.8 V are observed in all the six structures. In particular, both the electron and spin polarized current-voltage (I–V) curves depend strongly on the contact configurations between Co-BPB molecule and the Au electrodes. And the top-binding may result in spin dependent transport properties and will be the priority selection in the design of molecular devices.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>26931718</pmid><doi>10.1063/1.4942923</doi><tpages>7</tpages></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Benzene Bias Cobalt Electric potential Electrodes Electron spin Electrons Gold Hydrocarbons Nanowires Transport properties |
| title | The electron and spin polarized transport in wide-voltage-ranges through colbaltporphyrin-based molecular junctions |
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