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Enhancement of Transition Temperature in FexSe0.5Te0.5 Film via Iron Vacancies
The effects of iron deficiency in FexSe0.5Te0.5 thin films (0.8
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| Published in: | arXiv.org 2014-07 |
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| Main Authors: | , , , , , , , , |
| Format: | Article |
| Language: | English |
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| container_title | arXiv.org |
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| creator | Zhuang, J C Yeoh, W K Cui, X Y Kim, J H Shi, D Q Shi, Z X Ringer, S P Wang, X L Dou, S X |
| description | The effects of iron deficiency in FexSe0.5Te0.5 thin films (0.8 |
| doi_str_mv | 10.48550/arxiv.1407.1575 |
| format | article |
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A significant enhancement of the superconducting transition temperature (TC) up to 21K was observed in the most Fe deficient film (x=0.8). Based on the observed and simulated structural variation results, there is a high possibility that Fe vacancies can be formed in the FexSe0.5Te0.5 films. The enhancement of TC shows a strong relationship with the lattice strain effect induced by Fe vacancies. Importantly, the presence of Fe vacancies alters the charge carrier population by introducing electron charge carriers, with the Fe deficient film showing more metallic behavior than the defect-free film. Our study provides a means to enhance the superconductivity and tune the charge carriers via Fe vacancy, with no reliance on chemical doping.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1407.1575</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Computer simulation ; Current carriers ; Iron ; Lattice strain ; Lattice vacancies ; Organic chemistry ; Superconductivity ; Thin films ; Transition temperature</subject><ispartof>arXiv.org, 2014-07</ispartof><rights>2014. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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A significant enhancement of the superconducting transition temperature (TC) up to 21K was observed in the most Fe deficient film (x=0.8). Based on the observed and simulated structural variation results, there is a high possibility that Fe vacancies can be formed in the FexSe0.5Te0.5 films. The enhancement of TC shows a strong relationship with the lattice strain effect induced by Fe vacancies. Importantly, the presence of Fe vacancies alters the charge carrier population by introducing electron charge carriers, with the Fe deficient film showing more metallic behavior than the defect-free film. Our study provides a means to enhance the superconductivity and tune the charge carriers via Fe vacancy, with no reliance on chemical doping.</description><subject>Computer simulation</subject><subject>Current carriers</subject><subject>Iron</subject><subject>Lattice strain</subject><subject>Lattice vacancies</subject><subject>Organic chemistry</subject><subject>Superconductivity</subject><subject>Thin films</subject><subject>Transition temperature</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNotjc9LwzAYhoMgOObuHgOeW_M76VHGqoOhB4vX8TV8wYw1nUk79uc70cv7XB6el5AHzmrltGZPkC_xXHPFbM211TdkIaTklVNC3JFVKQfGmDBWaC0X5G2TviB5HDBNdAy0y5BKnOKYaIfDCTNMc0YaE23x8oGs1t3v0DYeB3qOQLf5qn6Cv0YilntyG-BYcPXPJenaTbd-rXbvL9v1864CzVUVwCobmFXSowXjlDfBeIHeczDcaVSICrRGIRkPPFjmbCNU7wwDLvteLsnjX_aUx-8Zy7Q_jHNO18e9YE7JxulGyR8rhU4N</recordid><startdate>20140707</startdate><enddate>20140707</enddate><creator>Zhuang, J C</creator><creator>Yeoh, W K</creator><creator>Cui, X Y</creator><creator>Kim, J H</creator><creator>Shi, D Q</creator><creator>Shi, Z X</creator><creator>Ringer, S P</creator><creator>Wang, X L</creator><creator>Dou, S X</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20140707</creationdate><title>Enhancement of Transition Temperature in FexSe0.5Te0.5 Film via Iron Vacancies</title><author>Zhuang, J C ; Yeoh, W K ; Cui, X Y ; Kim, J H ; Shi, D Q ; Shi, Z X ; Ringer, S P ; Wang, X L ; Dou, S X</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a514-fa747f0743ce7a684c6f6c2ecc1a6185e4ee4a55e2301f1f7087924b860a13bb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Computer simulation</topic><topic>Current carriers</topic><topic>Iron</topic><topic>Lattice strain</topic><topic>Lattice vacancies</topic><topic>Organic chemistry</topic><topic>Superconductivity</topic><topic>Thin films</topic><topic>Transition temperature</topic><toplevel>online_resources</toplevel><creatorcontrib>Zhuang, J C</creatorcontrib><creatorcontrib>Yeoh, W K</creatorcontrib><creatorcontrib>Cui, X Y</creatorcontrib><creatorcontrib>Kim, J H</creatorcontrib><creatorcontrib>Shi, D Q</creatorcontrib><creatorcontrib>Shi, Z X</creatorcontrib><creatorcontrib>Ringer, S P</creatorcontrib><creatorcontrib>Wang, X L</creatorcontrib><creatorcontrib>Dou, S X</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhuang, J C</au><au>Yeoh, W K</au><au>Cui, X Y</au><au>Kim, J H</au><au>Shi, D Q</au><au>Shi, Z X</au><au>Ringer, S P</au><au>Wang, X L</au><au>Dou, S X</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancement of Transition Temperature in FexSe0.5Te0.5 Film via Iron Vacancies</atitle><jtitle>arXiv.org</jtitle><date>2014-07-07</date><risdate>2014</risdate><eissn>2331-8422</eissn><abstract>The effects of iron deficiency in FexSe0.5Te0.5 thin films (0.8<x<1) on superconductivity and electronic properties have been studied. A significant enhancement of the superconducting transition temperature (TC) up to 21K was observed in the most Fe deficient film (x=0.8). Based on the observed and simulated structural variation results, there is a high possibility that Fe vacancies can be formed in the FexSe0.5Te0.5 films. The enhancement of TC shows a strong relationship with the lattice strain effect induced by Fe vacancies. Importantly, the presence of Fe vacancies alters the charge carrier population by introducing electron charge carriers, with the Fe deficient film showing more metallic behavior than the defect-free film. Our study provides a means to enhance the superconductivity and tune the charge carriers via Fe vacancy, with no reliance on chemical doping.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1407.1575</doi><oa>free_for_read</oa></addata></record> |
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| identifier | EISSN: 2331-8422 |
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| subjects | Computer simulation Current carriers Iron Lattice strain Lattice vacancies Organic chemistry Superconductivity Thin films Transition temperature |
| title | Enhancement of Transition Temperature in FexSe0.5Te0.5 Film via Iron Vacancies |
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