Tuning Spin Hall Angles by Alloying
Within a combined experimental and theoretical study it is shown that the spin Hall angle of a substitutional alloy system can be continuously varied via its composition. For the alloy system Au_{x}Pt_{1-x} a substantial increase of the maximum spin Hall angle compared to the pure alloy partners cou...
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Veröffentlicht in: | Physical review letters 2016-10, Vol.117 (16), p.167204-167204, Article 167204 |
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container_title | Physical review letters |
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creator | Obstbaum, M Decker, M Greitner, A K Haertinger, M Meier, T N G Kronseder, M Chadova, K Wimmer, S Ködderitzsch, D Ebert, H Back, C H |
description | Within a combined experimental and theoretical study it is shown that the spin Hall angle of a substitutional alloy system can be continuously varied via its composition. For the alloy system Au_{x}Pt_{1-x} a substantial increase of the maximum spin Hall angle compared to the pure alloy partners could be achieved this way. The experimental findings for the longitudinal charge conductivity σ, the transverse spin Hall conductivity σ_{SH}, and the spin Hall angle α_{SH} could be confirmed by calculations based on Kubo's linear response formalism. Calculations of these response quantities for different temperatures show that the divergent behavior of σ and σ_{SH} is rapidly suppressed with increasing temperature. As a consequence, σ_{SH} is dominated at higher temperatures by its intrinsic contribution that has only a rather weak temperature dependence. |
doi_str_mv | 10.1103/PhysRevLett.117.167204 |
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For the alloy system Au_{x}Pt_{1-x} a substantial increase of the maximum spin Hall angle compared to the pure alloy partners could be achieved this way. The experimental findings for the longitudinal charge conductivity σ, the transverse spin Hall conductivity σ_{SH}, and the spin Hall angle α_{SH} could be confirmed by calculations based on Kubo's linear response formalism. Calculations of these response quantities for different temperatures show that the divergent behavior of σ and σ_{SH} is rapidly suppressed with increasing temperature. As a consequence, σ_{SH} is dominated at higher temperatures by its intrinsic contribution that has only a rather weak temperature dependence.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.117.167204</identifier><identifier>PMID: 27792386</identifier><language>eng</language><publisher>United States</publisher><subject>Alloy systems ; Formalism ; Mathematical analysis ; Temperature dependence ; Tuning</subject><ispartof>Physical review letters, 2016-10, Vol.117 (16), p.167204-167204, Article 167204</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-471ad6f44f95b0283c7892620a57f15af6b7c9d8c1cc5689f4aeb0145b89c2663</citedby><cites>FETCH-LOGICAL-c445t-471ad6f44f95b0283c7892620a57f15af6b7c9d8c1cc5689f4aeb0145b89c2663</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,2876,2877,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27792386$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Obstbaum, M</creatorcontrib><creatorcontrib>Decker, M</creatorcontrib><creatorcontrib>Greitner, A K</creatorcontrib><creatorcontrib>Haertinger, M</creatorcontrib><creatorcontrib>Meier, T N G</creatorcontrib><creatorcontrib>Kronseder, M</creatorcontrib><creatorcontrib>Chadova, K</creatorcontrib><creatorcontrib>Wimmer, S</creatorcontrib><creatorcontrib>Ködderitzsch, D</creatorcontrib><creatorcontrib>Ebert, H</creatorcontrib><creatorcontrib>Back, C H</creatorcontrib><title>Tuning Spin Hall Angles by Alloying</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Within a combined experimental and theoretical study it is shown that the spin Hall angle of a substitutional alloy system can be continuously varied via its composition. For the alloy system Au_{x}Pt_{1-x} a substantial increase of the maximum spin Hall angle compared to the pure alloy partners could be achieved this way. The experimental findings for the longitudinal charge conductivity σ, the transverse spin Hall conductivity σ_{SH}, and the spin Hall angle α_{SH} could be confirmed by calculations based on Kubo's linear response formalism. Calculations of these response quantities for different temperatures show that the divergent behavior of σ and σ_{SH} is rapidly suppressed with increasing temperature. As a consequence, σ_{SH} is dominated at higher temperatures by its intrinsic contribution that has only a rather weak temperature dependence.</description><subject>Alloy systems</subject><subject>Formalism</subject><subject>Mathematical analysis</subject><subject>Temperature dependence</subject><subject>Tuning</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNkE9Lw0AQxRdRbK1-hRLw4iV1Znezf45F1AoFRes5bLabGtkmNZsI-fautIpHmcPAzHvzmB8hU4QZIrDrp7chPLvPpeu6OJAzFJICPyJjBKlTiciPyRiAYaoB5IichfAOAEiFOiUjKqWmTIkxuVz1dVVvkpddVScL430yrzfehaQYkrn3zRCX5-SkND64i0OfkNe729XNIl0-3j_czJep5TzrUi7RrEXJeamzAqhiVipNBQWTyRIzU4pCWr1WFq3NhNIlN64A5FmhtKVCsAm52t_dtc1H70KXb6tgnfemdk0fclQqfsAYy_4hZTEilo5SsZfatgmhdWW-a6utaYccIf9mmf9hGQcy37OMxukhoy-2bv1r-4HHvgDEnW_4</recordid><startdate>20161014</startdate><enddate>20161014</enddate><creator>Obstbaum, M</creator><creator>Decker, M</creator><creator>Greitner, A K</creator><creator>Haertinger, M</creator><creator>Meier, T N G</creator><creator>Kronseder, M</creator><creator>Chadova, K</creator><creator>Wimmer, S</creator><creator>Ködderitzsch, D</creator><creator>Ebert, H</creator><creator>Back, C H</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>20161014</creationdate><title>Tuning Spin Hall Angles by Alloying</title><author>Obstbaum, M ; Decker, M ; Greitner, A K ; Haertinger, M ; Meier, T N G ; Kronseder, M ; Chadova, K ; Wimmer, S ; Ködderitzsch, D ; Ebert, H ; Back, C H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-471ad6f44f95b0283c7892620a57f15af6b7c9d8c1cc5689f4aeb0145b89c2663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Alloy systems</topic><topic>Formalism</topic><topic>Mathematical analysis</topic><topic>Temperature dependence</topic><topic>Tuning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Obstbaum, M</creatorcontrib><creatorcontrib>Decker, M</creatorcontrib><creatorcontrib>Greitner, A K</creatorcontrib><creatorcontrib>Haertinger, M</creatorcontrib><creatorcontrib>Meier, T N G</creatorcontrib><creatorcontrib>Kronseder, M</creatorcontrib><creatorcontrib>Chadova, K</creatorcontrib><creatorcontrib>Wimmer, S</creatorcontrib><creatorcontrib>Ködderitzsch, D</creatorcontrib><creatorcontrib>Ebert, H</creatorcontrib><creatorcontrib>Back, C H</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>Obstbaum, M</au><au>Decker, M</au><au>Greitner, A K</au><au>Haertinger, M</au><au>Meier, T N G</au><au>Kronseder, M</au><au>Chadova, K</au><au>Wimmer, S</au><au>Ködderitzsch, D</au><au>Ebert, H</au><au>Back, C H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tuning Spin Hall Angles by Alloying</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2016-10-14</date><risdate>2016</risdate><volume>117</volume><issue>16</issue><spage>167204</spage><epage>167204</epage><pages>167204-167204</pages><artnum>167204</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Within a combined experimental and theoretical study it is shown that the spin Hall angle of a substitutional alloy system can be continuously varied via its composition. 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subjects | Alloy systems Formalism Mathematical analysis Temperature dependence Tuning |
title | Tuning Spin Hall Angles by Alloying |
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