Chemical CeO2-Based Buffer Layers for Fe(Se,Te) Films
Among other Fe-based superconductors, Fe(Se,Te) is particularly interesting because of the low structural anisotropy, large upper critical fields, low field dependence of the critical current density and low toxicity. It can also be grown as an epitaxial film on a metallic oriented substrate, making...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2022-06, Vol.32 (4), p.1-5 |
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| creator | Piperno, L. Vannozzi, A. Pinto, V. Augieri, A. Armenio, A. Angisani Rizzo, F. Mancini, A. Rufoloni, A. Celentano, G. Braccini, V. Cialone, M. Iebole, M. Manca, N. Martinelli, A. Putti, M. Sotgiu, G. Meledin, A. |
| description | Among other Fe-based superconductors, Fe(Se,Te) is particularly interesting because of the low structural anisotropy, large upper critical fields, low field dependence of the critical current density and low toxicity. It can also be grown as an epitaxial film on a metallic oriented substrate, making the fabrication of a Fe-based coated conductor (CC) possible. Less strict requirements on the template microstructure allow for the design of a simplified design compared to REBCO CCs. This design requires a buffer layer to promote the oriented growth of the superconducting film and avoid diffusion from the metallic template. In this work, CeO 2 based buffer layers are prepared on single crystals via two chemical deposition techniques, metal organic decomposition (MOD) and polymer assisted deposition (PAD). With the design of a suitable thermal treatment, it is possible to obtain oriented buffers with large flat grains and low values of surface roughness. Fe(Se,Te) films are deposited on these templates via laser deposition, and excellent samples are obtained when a Fe(Se,Te) seed layer is used to favour chemical matching with the buffer: sharp superconducting transitions around 16 K and critical current densities exceeding 1 MA cm − 2 at 4.2 K in self-field are observed. These results are the demonstration of the feasibility of a Fe-based CC architecture, with all the relative advantages concerning process simplification and cost reduction. |
| doi_str_mv | 10.1109/TASC.2022.3142709 |
| format | Article |
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Angisani ; Rizzo, F. ; Mancini, A. ; Rufoloni, A. ; Celentano, G. ; Braccini, V. ; Cialone, M. ; Iebole, M. ; Manca, N. ; Martinelli, A. ; Putti, M. ; Sotgiu, G. ; Meledin, A.</creator><creatorcontrib>Piperno, L. ; Vannozzi, A. ; Pinto, V. ; Augieri, A. ; Armenio, A. Angisani ; Rizzo, F. ; Mancini, A. ; Rufoloni, A. ; Celentano, G. ; Braccini, V. ; Cialone, M. ; Iebole, M. ; Manca, N. ; Martinelli, A. ; Putti, M. ; Sotgiu, G. ; Meledin, A.</creatorcontrib><description>Among other Fe-based superconductors, Fe(Se,Te) is particularly interesting because of the low structural anisotropy, large upper critical fields, low field dependence of the critical current density and low toxicity. It can also be grown as an epitaxial film on a metallic oriented substrate, making the fabrication of a Fe-based coated conductor (CC) possible. Less strict requirements on the template microstructure allow for the design of a simplified design compared to REBCO CCs. This design requires a buffer layer to promote the oriented growth of the superconducting film and avoid diffusion from the metallic template. In this work, CeO 2 based buffer layers are prepared on single crystals via two chemical deposition techniques, metal organic decomposition (MOD) and polymer assisted deposition (PAD). With the design of a suitable thermal treatment, it is possible to obtain oriented buffers with large flat grains and low values of surface roughness. Fe(Se,Te) films are deposited on these templates via laser deposition, and excellent samples are obtained when a Fe(Se,Te) seed layer is used to favour chemical matching with the buffer: sharp superconducting transitions around 16 K and critical current densities exceeding 1 MA cm − 2 at 4.2 K in self-field are observed. These results are the demonstration of the feasibility of a Fe-based CC architecture, with all the relative advantages concerning process simplification and cost reduction.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/TASC.2022.3142709</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Anisotropy ; Buffer layer ; Buffer layers ; Cerium oxides ; chemical solution deposition ; coated conductors ; Conductors ; Critical current density ; Diffusion layers ; Epitaxial growth ; Heat treatment ; Iron ; iron-based superconductors ; Laser deposition ; metal organic decomposition ; polymer-assisted deposition ; Rough surfaces ; Single crystals ; Substrates ; Superconductivity ; Superconductors ; Surface morphology ; Surface roughness ; Surface treatment ; Tellurium ; Temperature measurement ; Toxicity ; Zr-doped CeO2</subject><ispartof>IEEE transactions on applied superconductivity, 2022-06, Vol.32 (4), p.1-5</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-0942-0752 ; 0000-0003-3871-9152 ; 0000-0002-2111-8986 ; 0000-0002-7768-2500 ; 0000-0003-4628-4312 ; 0000-0002-4529-1708 ; 0000-0002-2571-4072 ; 0000-0001-7855-3543 ; 0000-0001-6017-0739 ; 0000-0003-0073-367X ; 0000-0001-8391-3486 ; 0000-0002-2775-8087 ; 0000-0002-7710-5084 ; 0000-0002-4148-1010 ; 0000-0002-3200-0553</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9681191$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>315,782,786,798,27931,27932,54765</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9681191$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Piperno, L.</creatorcontrib><creatorcontrib>Vannozzi, A.</creatorcontrib><creatorcontrib>Pinto, V.</creatorcontrib><creatorcontrib>Augieri, A.</creatorcontrib><creatorcontrib>Armenio, A. Angisani</creatorcontrib><creatorcontrib>Rizzo, F.</creatorcontrib><creatorcontrib>Mancini, A.</creatorcontrib><creatorcontrib>Rufoloni, A.</creatorcontrib><creatorcontrib>Celentano, G.</creatorcontrib><creatorcontrib>Braccini, V.</creatorcontrib><creatorcontrib>Cialone, M.</creatorcontrib><creatorcontrib>Iebole, M.</creatorcontrib><creatorcontrib>Manca, N.</creatorcontrib><creatorcontrib>Martinelli, A.</creatorcontrib><creatorcontrib>Putti, M.</creatorcontrib><creatorcontrib>Sotgiu, G.</creatorcontrib><creatorcontrib>Meledin, A.</creatorcontrib><title>Chemical CeO2-Based Buffer Layers for Fe(Se,Te) Films</title><title>IEEE transactions on applied superconductivity</title><addtitle>TASC</addtitle><description>Among other Fe-based superconductors, Fe(Se,Te) is particularly interesting because of the low structural anisotropy, large upper critical fields, low field dependence of the critical current density and low toxicity. It can also be grown as an epitaxial film on a metallic oriented substrate, making the fabrication of a Fe-based coated conductor (CC) possible. Less strict requirements on the template microstructure allow for the design of a simplified design compared to REBCO CCs. This design requires a buffer layer to promote the oriented growth of the superconducting film and avoid diffusion from the metallic template. In this work, CeO 2 based buffer layers are prepared on single crystals via two chemical deposition techniques, metal organic decomposition (MOD) and polymer assisted deposition (PAD). With the design of a suitable thermal treatment, it is possible to obtain oriented buffers with large flat grains and low values of surface roughness. Fe(Se,Te) films are deposited on these templates via laser deposition, and excellent samples are obtained when a Fe(Se,Te) seed layer is used to favour chemical matching with the buffer: sharp superconducting transitions around 16 K and critical current densities exceeding 1 MA cm − 2 at 4.2 K in self-field are observed. These results are the demonstration of the feasibility of a Fe-based CC architecture, with all the relative advantages concerning process simplification and cost reduction.</description><subject>Anisotropy</subject><subject>Buffer layer</subject><subject>Buffer layers</subject><subject>Cerium oxides</subject><subject>chemical solution deposition</subject><subject>coated conductors</subject><subject>Conductors</subject><subject>Critical current density</subject><subject>Diffusion layers</subject><subject>Epitaxial growth</subject><subject>Heat treatment</subject><subject>Iron</subject><subject>iron-based superconductors</subject><subject>Laser deposition</subject><subject>metal organic decomposition</subject><subject>polymer-assisted deposition</subject><subject>Rough surfaces</subject><subject>Single crystals</subject><subject>Substrates</subject><subject>Superconductivity</subject><subject>Superconductors</subject><subject>Surface morphology</subject><subject>Surface roughness</subject><subject>Surface treatment</subject><subject>Tellurium</subject><subject>Temperature measurement</subject><subject>Toxicity</subject><subject>Zr-doped CeO2</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNotjcFKAzEURYMoWKsfIG4G3Cg4Ne8lr5Ms28FRodBFx_WQTl5wSuvUpF307x2oq3vgHu4V4h7kBEDa13q2KicoEScKNBbSXogREJkcCehyYEmQG0R1LW5S2kgJ2mgaCSq_ede1bpuVvMR87hL7bH4MgWO2cCeOKQt9zCp-WvFLzc9Z1W136VZcBbdNfPefY_FVvdXlR75Yvn-Ws0XeoVSH3EsP6EPbBu8LdFMdvMPWaNSSJRlaK00Ia8C24HVBTGGokJ0NyrbWOTUWj-fdfex_j5wOzaY_xp_hssEpFkYromKwHs5Wx8zNPnY7F0-NnRoAC-oP-vJOiw</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Piperno, L.</creator><creator>Vannozzi, A.</creator><creator>Pinto, V.</creator><creator>Augieri, A.</creator><creator>Armenio, A. 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Angisani ; Rizzo, F. ; Mancini, A. ; Rufoloni, A. ; Celentano, G. ; Braccini, V. ; Cialone, M. ; Iebole, M. ; Manca, N. ; Martinelli, A. ; Putti, M. ; Sotgiu, G. ; Meledin, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i203t-d0d12dfccfdd72a64fda2c84240e0585b34521b12c7eb75e5f4242ea9f39c9aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Anisotropy</topic><topic>Buffer layer</topic><topic>Buffer layers</topic><topic>Cerium oxides</topic><topic>chemical solution deposition</topic><topic>coated conductors</topic><topic>Conductors</topic><topic>Critical current density</topic><topic>Diffusion layers</topic><topic>Epitaxial growth</topic><topic>Heat treatment</topic><topic>Iron</topic><topic>iron-based superconductors</topic><topic>Laser deposition</topic><topic>metal organic decomposition</topic><topic>polymer-assisted deposition</topic><topic>Rough surfaces</topic><topic>Single crystals</topic><topic>Substrates</topic><topic>Superconductivity</topic><topic>Superconductors</topic><topic>Surface morphology</topic><topic>Surface roughness</topic><topic>Surface treatment</topic><topic>Tellurium</topic><topic>Temperature measurement</topic><topic>Toxicity</topic><topic>Zr-doped CeO2</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Piperno, L.</creatorcontrib><creatorcontrib>Vannozzi, A.</creatorcontrib><creatorcontrib>Pinto, V.</creatorcontrib><creatorcontrib>Augieri, A.</creatorcontrib><creatorcontrib>Armenio, A. Angisani</creatorcontrib><creatorcontrib>Rizzo, F.</creatorcontrib><creatorcontrib>Mancini, A.</creatorcontrib><creatorcontrib>Rufoloni, A.</creatorcontrib><creatorcontrib>Celentano, G.</creatorcontrib><creatorcontrib>Braccini, V.</creatorcontrib><creatorcontrib>Cialone, M.</creatorcontrib><creatorcontrib>Iebole, M.</creatorcontrib><creatorcontrib>Manca, N.</creatorcontrib><creatorcontrib>Martinelli, A.</creatorcontrib><creatorcontrib>Putti, M.</creatorcontrib><creatorcontrib>Sotgiu, G.</creatorcontrib><creatorcontrib>Meledin, A.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on applied superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Piperno, L.</au><au>Vannozzi, A.</au><au>Pinto, V.</au><au>Augieri, A.</au><au>Armenio, A. Angisani</au><au>Rizzo, F.</au><au>Mancini, A.</au><au>Rufoloni, A.</au><au>Celentano, G.</au><au>Braccini, V.</au><au>Cialone, M.</au><au>Iebole, M.</au><au>Manca, N.</au><au>Martinelli, A.</au><au>Putti, M.</au><au>Sotgiu, G.</au><au>Meledin, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chemical CeO2-Based Buffer Layers for Fe(Se,Te) Films</atitle><jtitle>IEEE transactions on applied superconductivity</jtitle><stitle>TASC</stitle><date>2022-06-01</date><risdate>2022</risdate><volume>32</volume><issue>4</issue><spage>1</spage><epage>5</epage><pages>1-5</pages><issn>1051-8223</issn><eissn>1558-2515</eissn><coden>ITASE9</coden><abstract>Among other Fe-based superconductors, Fe(Se,Te) is particularly interesting because of the low structural anisotropy, large upper critical fields, low field dependence of the critical current density and low toxicity. It can also be grown as an epitaxial film on a metallic oriented substrate, making the fabrication of a Fe-based coated conductor (CC) possible. Less strict requirements on the template microstructure allow for the design of a simplified design compared to REBCO CCs. This design requires a buffer layer to promote the oriented growth of the superconducting film and avoid diffusion from the metallic template. In this work, CeO 2 based buffer layers are prepared on single crystals via two chemical deposition techniques, metal organic decomposition (MOD) and polymer assisted deposition (PAD). With the design of a suitable thermal treatment, it is possible to obtain oriented buffers with large flat grains and low values of surface roughness. Fe(Se,Te) films are deposited on these templates via laser deposition, and excellent samples are obtained when a Fe(Se,Te) seed layer is used to favour chemical matching with the buffer: sharp superconducting transitions around 16 K and critical current densities exceeding 1 MA cm − 2 at 4.2 K in self-field are observed. These results are the demonstration of the feasibility of a Fe-based CC architecture, with all the relative advantages concerning process simplification and cost reduction.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TASC.2022.3142709</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-0942-0752</orcidid><orcidid>https://orcid.org/0000-0003-3871-9152</orcidid><orcidid>https://orcid.org/0000-0002-2111-8986</orcidid><orcidid>https://orcid.org/0000-0002-7768-2500</orcidid><orcidid>https://orcid.org/0000-0003-4628-4312</orcidid><orcidid>https://orcid.org/0000-0002-4529-1708</orcidid><orcidid>https://orcid.org/0000-0002-2571-4072</orcidid><orcidid>https://orcid.org/0000-0001-7855-3543</orcidid><orcidid>https://orcid.org/0000-0001-6017-0739</orcidid><orcidid>https://orcid.org/0000-0003-0073-367X</orcidid><orcidid>https://orcid.org/0000-0001-8391-3486</orcidid><orcidid>https://orcid.org/0000-0002-2775-8087</orcidid><orcidid>https://orcid.org/0000-0002-7710-5084</orcidid><orcidid>https://orcid.org/0000-0002-4148-1010</orcidid><orcidid>https://orcid.org/0000-0002-3200-0553</orcidid></addata></record> |
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| subjects | Anisotropy Buffer layer Buffer layers Cerium oxides chemical solution deposition coated conductors Conductors Critical current density Diffusion layers Epitaxial growth Heat treatment Iron iron-based superconductors Laser deposition metal organic decomposition polymer-assisted deposition Rough surfaces Single crystals Substrates Superconductivity Superconductors Surface morphology Surface roughness Surface treatment Tellurium Temperature measurement Toxicity Zr-doped CeO2 |
| title | Chemical CeO2-Based Buffer Layers for Fe(Se,Te) Films |
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