Spin Transport in Ferromagnet-InSb Nanowire Quantum Devices
Signatures of Majorana zero modes (MZMs) have been observed in semiconductor nanowires (NWs) with a strong spin–orbital interaction (SOI) with proximity-induced superconductivity. Realizing topological superconductivity and MZMs in this platform requires eliminating spin degeneracy by applying a mag...
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| Veröffentlicht in: | Nano letters 2020-05, Vol.20 (5), p.3232-3239 |
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| container_title | Nano letters |
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| creator | Yang, Zedong Heischmidt, Brett Gazibegovic, Sasa Badawy, Ghada Car, Diana Crowell, Paul A Bakkers, Erik P.A.M Pribiag, Vlad S |
| description | Signatures of Majorana zero modes (MZMs) have been observed in semiconductor nanowires (NWs) with a strong spin–orbital interaction (SOI) with proximity-induced superconductivity. Realizing topological superconductivity and MZMs in this platform requires eliminating spin degeneracy by applying a magnetic field. However, the field can adversely impact the induced superconductivity and places geometric restrictions on the device. These challenges could be circumvented by integrating magnetic elements with the NWs. Here, we report the first experimental investigation of spin transport across InSb NWs with ferromagnetic (FM) contacts. We observe signatures of spin polarization and spin-dependent transport in the quasi-one-dimensional ballistic regime. Moreover, we show that electrostatic gating tunes the observed magnetic signal and reveals a regime where the device acts as a spin filter. These results open an avenue toward developing MZM devices with spin degeneracy lifted locally without external fields. They could also enable spin-based devices that leverage spin–orbital states in quantum wires. |
| doi_str_mv | 10.1021/acs.nanolett.9b05331 |
| format | Article |
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Realizing topological superconductivity and MZMs in this platform requires eliminating spin degeneracy by applying a magnetic field. However, the field can adversely impact the induced superconductivity and places geometric restrictions on the device. These challenges could be circumvented by integrating magnetic elements with the NWs. Here, we report the first experimental investigation of spin transport across InSb NWs with ferromagnetic (FM) contacts. We observe signatures of spin polarization and spin-dependent transport in the quasi-one-dimensional ballistic regime. Moreover, we show that electrostatic gating tunes the observed magnetic signal and reveals a regime where the device acts as a spin filter. These results open an avenue toward developing MZM devices with spin degeneracy lifted locally without external fields. They could also enable spin-based devices that leverage spin–orbital states in quantum wires.</description><identifier>ISSN: 1530-6984</identifier><identifier>EISSN: 1530-6992</identifier><identifier>DOI: 10.1021/acs.nanolett.9b05331</identifier><identifier>PMID: 32338518</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>1D ballistic spin transport ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; helical gap ; InSb nanowire ; MATERIALS SCIENCE ; NANOSCIENCE AND NANOTECHNOLOGY ; semiconductor-ferromagnet quantum device</subject><ispartof>Nano letters, 2020-05, Vol.20 (5), p.3232-3239</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a487t-241c0e4ede29f7c02690f2eb9afba63a703b58026a0f61c3be521ca71e641ac23</citedby><cites>FETCH-LOGICAL-a487t-241c0e4ede29f7c02690f2eb9afba63a703b58026a0f61c3be521ca71e641ac23</cites><orcidid>0000-0002-6371-8285 ; 0000-0003-1784-6347 ; 0000000317846347 ; 0000000263718285</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.nanolett.9b05331$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.nanolett.9b05331$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>230,314,776,780,881,2751,27055,27903,27904,56716,56766</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32338518$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/servlets/purl/1618853$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Zedong</creatorcontrib><creatorcontrib>Heischmidt, Brett</creatorcontrib><creatorcontrib>Gazibegovic, Sasa</creatorcontrib><creatorcontrib>Badawy, Ghada</creatorcontrib><creatorcontrib>Car, Diana</creatorcontrib><creatorcontrib>Crowell, Paul A</creatorcontrib><creatorcontrib>Bakkers, Erik P.A.M</creatorcontrib><creatorcontrib>Pribiag, Vlad S</creatorcontrib><creatorcontrib>Univ. of Minnesota, Minneapolis, MN (United States)</creatorcontrib><title>Spin Transport in Ferromagnet-InSb Nanowire Quantum Devices</title><title>Nano letters</title><addtitle>Nano Lett</addtitle><description>Signatures of Majorana zero modes (MZMs) have been observed in semiconductor nanowires (NWs) with a strong spin–orbital interaction (SOI) with proximity-induced superconductivity. Realizing topological superconductivity and MZMs in this platform requires eliminating spin degeneracy by applying a magnetic field. However, the field can adversely impact the induced superconductivity and places geometric restrictions on the device. These challenges could be circumvented by integrating magnetic elements with the NWs. Here, we report the first experimental investigation of spin transport across InSb NWs with ferromagnetic (FM) contacts. We observe signatures of spin polarization and spin-dependent transport in the quasi-one-dimensional ballistic regime. Moreover, we show that electrostatic gating tunes the observed magnetic signal and reveals a regime where the device acts as a spin filter. These results open an avenue toward developing MZM devices with spin degeneracy lifted locally without external fields. They could also enable spin-based devices that leverage spin–orbital states in quantum wires.</description><subject>1D ballistic spin transport</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>helical gap</subject><subject>InSb nanowire</subject><subject>MATERIALS SCIENCE</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>semiconductor-ferromagnet quantum device</subject><issn>1530-6984</issn><issn>1530-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMotlb_gcjiycvWfOxX8CTVaqEo0noO2XRWt3STNckq_ntTtu1RCCQTnneGeRC6JHhMMCW3UrmxltpswPsxL3HKGDlCQ5IyHGec0-PDu0gG6My5NcaYsxSfogGjjBUpKYbobtHWOlpaqV1rrI9CMQVrTSM_NPh4phdl9BKm_NQWordOat810QN81wrcOTqp5MbBxe4eoffp43LyHM9fn2aT-3kskyL3MU2IwpDACiivcoVpxnFFoeSyKmXGZI5ZmRbhW-IqI4qVkFKiZE4gS4hUlI3Qdd_XOF8Lp2oP6lMZrUF5QTJSFGH3Ebrpodaarw6cF03tFGw2UoPpnKCMpzQNZ4smPaqscc5CJVpbN9L-CoLF1q0IbsXerdi5DbGr3YSubGB1CO1lBgD3wDa-Np3Vwcr_Pf8AfhuIEA</recordid><startdate>20200513</startdate><enddate>20200513</enddate><creator>Yang, Zedong</creator><creator>Heischmidt, Brett</creator><creator>Gazibegovic, Sasa</creator><creator>Badawy, Ghada</creator><creator>Car, Diana</creator><creator>Crowell, Paul A</creator><creator>Bakkers, Erik P.A.M</creator><creator>Pribiag, Vlad S</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-6371-8285</orcidid><orcidid>https://orcid.org/0000-0003-1784-6347</orcidid><orcidid>https://orcid.org/0000000317846347</orcidid><orcidid>https://orcid.org/0000000263718285</orcidid></search><sort><creationdate>20200513</creationdate><title>Spin Transport in Ferromagnet-InSb Nanowire Quantum Devices</title><author>Yang, Zedong ; Heischmidt, Brett ; Gazibegovic, Sasa ; Badawy, Ghada ; Car, Diana ; Crowell, Paul A ; Bakkers, Erik P.A.M ; Pribiag, Vlad S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a487t-241c0e4ede29f7c02690f2eb9afba63a703b58026a0f61c3be521ca71e641ac23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>1D ballistic spin transport</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>helical gap</topic><topic>InSb nanowire</topic><topic>MATERIALS SCIENCE</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>semiconductor-ferromagnet quantum device</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Zedong</creatorcontrib><creatorcontrib>Heischmidt, Brett</creatorcontrib><creatorcontrib>Gazibegovic, Sasa</creatorcontrib><creatorcontrib>Badawy, Ghada</creatorcontrib><creatorcontrib>Car, Diana</creatorcontrib><creatorcontrib>Crowell, Paul A</creatorcontrib><creatorcontrib>Bakkers, Erik P.A.M</creatorcontrib><creatorcontrib>Pribiag, Vlad S</creatorcontrib><creatorcontrib>Univ. of Minnesota, Minneapolis, MN (United States)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Nano letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Zedong</au><au>Heischmidt, Brett</au><au>Gazibegovic, Sasa</au><au>Badawy, Ghada</au><au>Car, Diana</au><au>Crowell, Paul A</au><au>Bakkers, Erik P.A.M</au><au>Pribiag, Vlad S</au><aucorp>Univ. of Minnesota, Minneapolis, MN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spin Transport in Ferromagnet-InSb Nanowire Quantum Devices</atitle><jtitle>Nano letters</jtitle><addtitle>Nano Lett</addtitle><date>2020-05-13</date><risdate>2020</risdate><volume>20</volume><issue>5</issue><spage>3232</spage><epage>3239</epage><pages>3232-3239</pages><issn>1530-6984</issn><eissn>1530-6992</eissn><abstract>Signatures of Majorana zero modes (MZMs) have been observed in semiconductor nanowires (NWs) with a strong spin–orbital interaction (SOI) with proximity-induced superconductivity. Realizing topological superconductivity and MZMs in this platform requires eliminating spin degeneracy by applying a magnetic field. However, the field can adversely impact the induced superconductivity and places geometric restrictions on the device. These challenges could be circumvented by integrating magnetic elements with the NWs. Here, we report the first experimental investigation of spin transport across InSb NWs with ferromagnetic (FM) contacts. We observe signatures of spin polarization and spin-dependent transport in the quasi-one-dimensional ballistic regime. Moreover, we show that electrostatic gating tunes the observed magnetic signal and reveals a regime where the device acts as a spin filter. These results open an avenue toward developing MZM devices with spin degeneracy lifted locally without external fields. 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| source | ACS Publications |
| subjects | 1D ballistic spin transport CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY helical gap InSb nanowire MATERIALS SCIENCE NANOSCIENCE AND NANOTECHNOLOGY semiconductor-ferromagnet quantum device |
| title | Spin Transport in Ferromagnet-InSb Nanowire Quantum Devices |
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