Spin-Polarized Yu-Shiba-Rusinov States in an Iron-Based Superconductor
Yu-Shiba-Rusinov (YSR) bound states appear when a magnetic atom interacts with a superconductor. Here, we report on spin-resolved spectroscopic studies of YSR states related with Fe atoms deposited on the surface of the topological superconductor FeTe_{0.55}Se_{0.45} using a spin-polarized scanning...
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| Veröffentlicht in: | Physical review letters 2021-02, Vol.126 (7), p.076802-076802, Article 076802 |
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| container_title | Physical review letters |
| container_volume | 126 |
| creator | Wang, Dongfei Wiebe, Jens Zhong, Ruidan Gu, Genda Wiesendanger, Roland |
| description | Yu-Shiba-Rusinov (YSR) bound states appear when a magnetic atom interacts with a superconductor. Here, we report on spin-resolved spectroscopic studies of YSR states related with Fe atoms deposited on the surface of the topological superconductor FeTe_{0.55}Se_{0.45} using a spin-polarized scanning tunneling microscope. We clearly identify the spin signature of pairs of YSR bound states at finite energies within the superconducting gap having opposite spin polarization as theoretically predicted. In addition, we also observe zero-energy bound states for some of the adsorbed Fe atoms. In this case, a spin signature is found to be absent indicating the absence of Majorana bound states associated with Fe adatoms on FeTe_{0.55}Se_{0.45}. |
| doi_str_mv | 10.1103/PhysRevLett.126.076802 |
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Here, we report on spin-resolved spectroscopic studies of YSR states related with Fe atoms deposited on the surface of the topological superconductor FeTe_{0.55}Se_{0.45} using a spin-polarized scanning tunneling microscope. We clearly identify the spin signature of pairs of YSR bound states at finite energies within the superconducting gap having opposite spin polarization as theoretically predicted. In addition, we also observe zero-energy bound states for some of the adsorbed Fe atoms. In this case, a spin signature is found to be absent indicating the absence of Majorana bound states associated with Fe adatoms on FeTe_{0.55}Se_{0.45}.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.126.076802</identifier><identifier>PMID: 33666492</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Adatoms ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Fe-based superconductor ; Iron ; Majorana bound states ; Polarization (spin alignment) ; spinpolarized STM ; Topological superconductors ; Yu-Shiba-Rusinov states</subject><ispartof>Physical review letters, 2021-02, Vol.126 (7), p.076802-076802, Article 076802</ispartof><rights>Copyright American Physical Society Feb 19, 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c366t-b73325e6178c587638b31c0815f63e751e4e8dcb94e68281ced5116328d3ec533</citedby><cites>FETCH-LOGICAL-c366t-b73325e6178c587638b31c0815f63e751e4e8dcb94e68281ced5116328d3ec533</cites><orcidid>0000-0002-0472-4183 ; 0000-0003-4645-2881 ; 0000-0003-1668-6142 ; 0000000204724183 ; 0000000316686142 ; 0000000346452881 ; 0000000298863255</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,2876,2877,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33666492$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/servlets/purl/1771132$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Dongfei</creatorcontrib><creatorcontrib>Wiebe, Jens</creatorcontrib><creatorcontrib>Zhong, Ruidan</creatorcontrib><creatorcontrib>Gu, Genda</creatorcontrib><creatorcontrib>Wiesendanger, Roland</creatorcontrib><creatorcontrib>Brookhaven National Laboratory (BNL), Upton, NY (United States)</creatorcontrib><title>Spin-Polarized Yu-Shiba-Rusinov States in an Iron-Based Superconductor</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Yu-Shiba-Rusinov (YSR) bound states appear when a magnetic atom interacts with a superconductor. Here, we report on spin-resolved spectroscopic studies of YSR states related with Fe atoms deposited on the surface of the topological superconductor FeTe_{0.55}Se_{0.45} using a spin-polarized scanning tunneling microscope. We clearly identify the spin signature of pairs of YSR bound states at finite energies within the superconducting gap having opposite spin polarization as theoretically predicted. In addition, we also observe zero-energy bound states for some of the adsorbed Fe atoms. In this case, a spin signature is found to be absent indicating the absence of Majorana bound states associated with Fe adatoms on FeTe_{0.55}Se_{0.45}.</description><subject>Adatoms</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Fe-based superconductor</subject><subject>Iron</subject><subject>Majorana bound states</subject><subject>Polarization (spin alignment)</subject><subject>spinpolarized STM</subject><subject>Topological superconductors</subject><subject>Yu-Shiba-Rusinov states</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpdkU9PGzEQxa2qqIS0XwGt2ksvDh571_YeC-KfFAlEyoGTteudKEaJndpeJPj0dRRAiNNcfm9m3nuEHAObATBxcrt6Tnf4NMecZ8DljCmpGf9CJsBUSxVA_ZVMGBNAW8bUITlK6ZExVlD9jRwKIaWsWz4hF4ut8_Q2rLvoXnCoHka6WLm-o3djcj48VYvcZUyV81Xnq-sYPD3tUgEX4xajDX4YbQ7xOzlYduuEP17nlNxfnP89u6Lzm8vrsz9zasvFTHslBG9QgtK20UoK3QuwTEOzlAJVA1ijHmzf1ig112BxaACk4HoQaBshpuTnfm9I2ZlkXUa7Kl94tNmAKr4FL9DvPbSN4d-IKZuNSxbX685jGJPhdatrXTd6h_76hD6GMfpiYUcpXrIuX06J3FM2hpQiLs02uk0Xnw0ws6vDfKjDlIzNvo4iPH5dP_YbHN5lb_mL_9dvhlQ</recordid><startdate>20210219</startdate><enddate>20210219</enddate><creator>Wang, Dongfei</creator><creator>Wiebe, Jens</creator><creator>Zhong, Ruidan</creator><creator>Gu, Genda</creator><creator>Wiesendanger, Roland</creator><general>American Physical Society</general><general>American Physical Society (APS)</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-0472-4183</orcidid><orcidid>https://orcid.org/0000-0003-4645-2881</orcidid><orcidid>https://orcid.org/0000-0003-1668-6142</orcidid><orcidid>https://orcid.org/0000000204724183</orcidid><orcidid>https://orcid.org/0000000316686142</orcidid><orcidid>https://orcid.org/0000000346452881</orcidid><orcidid>https://orcid.org/0000000298863255</orcidid></search><sort><creationdate>20210219</creationdate><title>Spin-Polarized Yu-Shiba-Rusinov States in an Iron-Based Superconductor</title><author>Wang, Dongfei ; Wiebe, Jens ; Zhong, Ruidan ; Gu, Genda ; Wiesendanger, Roland</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c366t-b73325e6178c587638b31c0815f63e751e4e8dcb94e68281ced5116328d3ec533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adatoms</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>Fe-based superconductor</topic><topic>Iron</topic><topic>Majorana bound states</topic><topic>Polarization (spin alignment)</topic><topic>spinpolarized STM</topic><topic>Topological superconductors</topic><topic>Yu-Shiba-Rusinov states</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Dongfei</creatorcontrib><creatorcontrib>Wiebe, Jens</creatorcontrib><creatorcontrib>Zhong, Ruidan</creatorcontrib><creatorcontrib>Gu, Genda</creatorcontrib><creatorcontrib>Wiesendanger, Roland</creatorcontrib><creatorcontrib>Brookhaven National Laboratory (BNL), Upton, NY (United States)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Dongfei</au><au>Wiebe, Jens</au><au>Zhong, Ruidan</au><au>Gu, Genda</au><au>Wiesendanger, Roland</au><aucorp>Brookhaven National Laboratory (BNL), Upton, NY (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spin-Polarized Yu-Shiba-Rusinov States in an Iron-Based Superconductor</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2021-02-19</date><risdate>2021</risdate><volume>126</volume><issue>7</issue><spage>076802</spage><epage>076802</epage><pages>076802-076802</pages><artnum>076802</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Yu-Shiba-Rusinov (YSR) bound states appear when a magnetic atom interacts with a superconductor. Here, we report on spin-resolved spectroscopic studies of YSR states related with Fe atoms deposited on the surface of the topological superconductor FeTe_{0.55}Se_{0.45} using a spin-polarized scanning tunneling microscope. We clearly identify the spin signature of pairs of YSR bound states at finite energies within the superconducting gap having opposite spin polarization as theoretically predicted. In addition, we also observe zero-energy bound states for some of the adsorbed Fe atoms. In this case, a spin signature is found to be absent indicating the absence of Majorana bound states associated with Fe adatoms on FeTe_{0.55}Se_{0.45}.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>33666492</pmid><doi>10.1103/PhysRevLett.126.076802</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-0472-4183</orcidid><orcidid>https://orcid.org/0000-0003-4645-2881</orcidid><orcidid>https://orcid.org/0000-0003-1668-6142</orcidid><orcidid>https://orcid.org/0000000204724183</orcidid><orcidid>https://orcid.org/0000000316686142</orcidid><orcidid>https://orcid.org/0000000346452881</orcidid><orcidid>https://orcid.org/0000000298863255</orcidid><oa>free_for_read</oa></addata></record> |
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| source | American Physical Society Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Adatoms CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Fe-based superconductor Iron Majorana bound states Polarization (spin alignment) spinpolarized STM Topological superconductors Yu-Shiba-Rusinov states |
| title | Spin-Polarized Yu-Shiba-Rusinov States in an Iron-Based Superconductor |
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