Electronic transport in graphene with aggregated hydrogen adatoms
Hydrogen adatoms and other species covalently bound to graphene act as resonant scattering centers affecting the electronic transport properties and inducing Anderson localization. We show that attractive interactions between adatoms on graphene and their diffusion mobility strongly modify the spati...
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| Veröffentlicht in: | Physical review letters 2014-12, Vol.113 (24), p.246601-246601, Article 246601 |
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| container_end_page | 246601 |
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| container_issue | 24 |
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| container_title | Physical review letters |
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| creator | Gargiulo, Fernando Autès, Gabriel Virk, Naunidh Barthel, Stefan Rösner, Malte Toller, Lisa R M Wehling, Tim O Yazyev, Oleg V |
| description | Hydrogen adatoms and other species covalently bound to graphene act as resonant scattering centers affecting the electronic transport properties and inducing Anderson localization. We show that attractive interactions between adatoms on graphene and their diffusion mobility strongly modify the spatial distribution, thus fully eliminating isolated adatoms and increasing the population of larger size adatom aggregates. Such spatial correlation is found to strongly influence the electronic transport properties of disordered graphene. Our scaling analysis shows that such aggregation of adatoms increases conductance by up to several orders of magnitude and results in significant extension of the Anderson localization length in the strong localization regime. We introduce a simple definition of the effective adatom concentration x*, which describes the transport properties of both random and correlated distributions of hydrogen adatoms on graphene across a broad range of concentrations. |
| doi_str_mv | 10.1103/PhysRevLett.113.246601 |
| format | Article |
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We introduce a simple definition of the effective adatom concentration x*, which describes the transport properties of both random and correlated distributions of hydrogen adatoms on graphene across a broad range of concentrations.</description><subject>Agglomeration</subject><subject>Anderson localization</subject><subject>Correlation</subject><subject>Covalence</subject><subject>Electron transport</subject><subject>Graphene</subject><subject>Hydrogen</subject><subject>Spatial distribution</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKw0AUhgdRbK2-QsnSTercMpksS6kXKCjSfZjLmSSSS52ZKn17I63iztWBn_87h_MhNCd4QQhmdy_1IbzCxwZiHAO2oFwITM7QlOC8SHNC-DmaYsxIWmCcT9BVCG8YY0KFvEQTmmWc5LKYouW6BRP90DcmiV71YTf4mDR9Unm1q6GH5LOJdaKqykOlItikPlg_VNAnyqo4dOEaXTjVBrg5zRna3q-3q8d08_zwtFpuUsMKGlPrNC24dTaTkuYGNNWYWeMkFxpToTmXzNGcOaMdMM2AF7JgXDmmsLSOzdDtce3OD-97CLHsmmCgbVUPwz6U4zuCElrk2f9VwbHMRoCPVXGsGj-E4MGVO990yh9Kgstv0eUf0WPAyqPoEZyfbux1B_YX-zHLvgA9tX1L</recordid><startdate>20141212</startdate><enddate>20141212</enddate><creator>Gargiulo, Fernando</creator><creator>Autès, Gabriel</creator><creator>Virk, Naunidh</creator><creator>Barthel, Stefan</creator><creator>Rösner, Malte</creator><creator>Toller, Lisa R M</creator><creator>Wehling, Tim O</creator><creator>Yazyev, Oleg V</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20141212</creationdate><title>Electronic transport in graphene with aggregated hydrogen adatoms</title><author>Gargiulo, Fernando ; Autès, Gabriel ; Virk, Naunidh ; Barthel, Stefan ; Rösner, Malte ; Toller, Lisa R M ; Wehling, Tim O ; Yazyev, Oleg V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-dfb294dfd58827ceb2b03dcf846b026b4483f273fcbfe3b3e498934af3a08df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Agglomeration</topic><topic>Anderson localization</topic><topic>Correlation</topic><topic>Covalence</topic><topic>Electron transport</topic><topic>Graphene</topic><topic>Hydrogen</topic><topic>Spatial distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gargiulo, Fernando</creatorcontrib><creatorcontrib>Autès, Gabriel</creatorcontrib><creatorcontrib>Virk, Naunidh</creatorcontrib><creatorcontrib>Barthel, Stefan</creatorcontrib><creatorcontrib>Rösner, Malte</creatorcontrib><creatorcontrib>Toller, Lisa R M</creatorcontrib><creatorcontrib>Wehling, Tim O</creatorcontrib><creatorcontrib>Yazyev, Oleg V</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gargiulo, Fernando</au><au>Autès, Gabriel</au><au>Virk, Naunidh</au><au>Barthel, Stefan</au><au>Rösner, Malte</au><au>Toller, Lisa R M</au><au>Wehling, Tim O</au><au>Yazyev, Oleg V</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electronic transport in graphene with aggregated hydrogen adatoms</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2014-12-12</date><risdate>2014</risdate><volume>113</volume><issue>24</issue><spage>246601</spage><epage>246601</epage><pages>246601-246601</pages><artnum>246601</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Hydrogen adatoms and other species covalently bound to graphene act as resonant scattering centers affecting the electronic transport properties and inducing Anderson localization. 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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2014-12, Vol.113 (24), p.246601-246601, Article 246601 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Agglomeration Anderson localization Correlation Covalence Electron transport Graphene Hydrogen Spatial distribution |
| title | Electronic transport in graphene with aggregated hydrogen adatoms |
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