Pressure-induced isostructural phase transition and correlation of FeAs coordination with the superconducting properties of 111-type Na1-xFeAs
The effect of pressure on the crystalline structure and superconducting transition temperature (Tc) of the 111-type Na1-xFeAs system using in situ high pressure synchrotron x-ray powder diffraction and diamond anvil cell techniques is studied. A pressure-induced tetragonal to tetragonal isostructura...
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| creator | Liu, Qingqing Yu, Xiaohui Wang, Xiancheng Deng, Zheng Lv, Yuxi Zhu, Jinlong Zhang, Sijia Liu, Haozhe Yang, Wenge Wang, Lin Mao, Hokwang Shen, Guoyin Lu, Zhongyi Yang, Ren Chen, Zhiqiang Lin, Zhijun Zhao, Yusheng Jin, Changqing |
| description | The effect of pressure on the crystalline structure and superconducting transition temperature (Tc) of the 111-type Na1-xFeAs system using in situ high pressure synchrotron x-ray powder diffraction and diamond anvil cell techniques is studied. A pressure-induced tetragonal to tetragonal isostructural phase transition was found. The systematic evolution of the FeAs4 tetrahedron as a function of pressure based on Rietveld refinements on the powder x-ray diffraction patterns was obtained. The non-monotonic Tc(P) behavior of Na1-xFeAs is found to correlate with the anomalies of the distance between the anion (As) and the iron layer as well as the bond angle between As-Fe-As for the two tetragonal phases. This behavior provides the key structural information in understanding the origin of the pressure dependence of Tc for 111-type iron pnictide superconductors. A pressure-induced structural phase transition is also observed at 20 GPa. |
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A pressure-induced tetragonal to tetragonal isostructural phase transition was found. The systematic evolution of the FeAs4 tetrahedron as a function of pressure based on Rietveld refinements on the powder x-ray diffraction patterns was obtained. The non-monotonic Tc(P) behavior of Na1-xFeAs is found to correlate with the anomalies of the distance between the anion (As) and the iron layer as well as the bond angle between As-Fe-As for the two tetragonal phases. This behavior provides the key structural information in understanding the origin of the pressure dependence of Tc for 111-type iron pnictide superconductors. A pressure-induced structural phase transition is also observed at 20 GPa.</description><identifier>EISSN: 2331-8422</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Anomalies ; Diamond anvil cells ; Diffraction ; Diffraction patterns ; Group 5A compounds ; Iron ; Phase transitions ; Pressure dependence ; Pressure effects ; Superconductivity ; Synchrotron radiation ; Tetrahedra ; Transition temperature ; X ray powder diffraction ; X-ray diffraction</subject><ispartof>arXiv.org, 2011-06</ispartof><rights>2011. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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A pressure-induced tetragonal to tetragonal isostructural phase transition was found. The systematic evolution of the FeAs4 tetrahedron as a function of pressure based on Rietveld refinements on the powder x-ray diffraction patterns was obtained. The non-monotonic Tc(P) behavior of Na1-xFeAs is found to correlate with the anomalies of the distance between the anion (As) and the iron layer as well as the bond angle between As-Fe-As for the two tetragonal phases. This behavior provides the key structural information in understanding the origin of the pressure dependence of Tc for 111-type iron pnictide superconductors. A pressure-induced structural phase transition is also observed at 20 GPa.</description><subject>Anomalies</subject><subject>Diamond anvil cells</subject><subject>Diffraction</subject><subject>Diffraction patterns</subject><subject>Group 5A compounds</subject><subject>Iron</subject><subject>Phase transitions</subject><subject>Pressure dependence</subject><subject>Pressure effects</subject><subject>Superconductivity</subject><subject>Synchrotron radiation</subject><subject>Tetrahedra</subject><subject>Transition temperature</subject><subject>X ray powder diffraction</subject><subject>X-ray diffraction</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNjM1qAjEUhYNQUFrf4ULXgSTT0WylKF1JF91LmLl2IkMy3nuD-hI-c2dsH6Crw_nOz0wtXFVZ7d-cm6sl88kY41ZrV9fVQt0_CZkLoY6pLQ22EDmzUGmkUOhh6AIjCIXEUWJOEFILTSbCPjx8PsIONzyyTG1Mv_ASpQPpELgMSE2eriWmbxgoj0Ai8jS01mq5DQj7YPV1unlRT8fQMy7_9Fm97rZf7x96HJ4LshxOuVAao4MzfuWdr72p_tf6AfIFVqc</recordid><startdate>20110628</startdate><enddate>20110628</enddate><creator>Liu, Qingqing</creator><creator>Yu, Xiaohui</creator><creator>Wang, Xiancheng</creator><creator>Deng, Zheng</creator><creator>Lv, Yuxi</creator><creator>Zhu, Jinlong</creator><creator>Zhang, Sijia</creator><creator>Liu, Haozhe</creator><creator>Yang, Wenge</creator><creator>Wang, Lin</creator><creator>Mao, Hokwang</creator><creator>Shen, Guoyin</creator><creator>Lu, Zhongyi</creator><creator>Yang, Ren</creator><creator>Chen, Zhiqiang</creator><creator>Lin, Zhijun</creator><creator>Zhao, Yusheng</creator><creator>Jin, Changqing</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>20110628</creationdate><title>Pressure-induced isostructural phase transition and correlation of FeAs coordination with the superconducting properties of 111-type Na1-xFeAs</title><author>Liu, Qingqing ; Yu, Xiaohui ; Wang, Xiancheng ; Deng, Zheng ; Lv, Yuxi ; Zhu, Jinlong ; Zhang, Sijia ; Liu, Haozhe ; Yang, Wenge ; Wang, Lin ; Mao, Hokwang ; Shen, Guoyin ; Lu, Zhongyi ; Yang, Ren ; Chen, Zhiqiang ; Lin, Zhijun ; Zhao, Yusheng ; Jin, Changqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_20868285803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Anomalies</topic><topic>Diamond anvil cells</topic><topic>Diffraction</topic><topic>Diffraction patterns</topic><topic>Group 5A compounds</topic><topic>Iron</topic><topic>Phase transitions</topic><topic>Pressure dependence</topic><topic>Pressure effects</topic><topic>Superconductivity</topic><topic>Synchrotron radiation</topic><topic>Tetrahedra</topic><topic>Transition temperature</topic><topic>X ray powder diffraction</topic><topic>X-ray diffraction</topic><toplevel>online_resources</toplevel><creatorcontrib>Liu, Qingqing</creatorcontrib><creatorcontrib>Yu, Xiaohui</creatorcontrib><creatorcontrib>Wang, Xiancheng</creatorcontrib><creatorcontrib>Deng, Zheng</creatorcontrib><creatorcontrib>Lv, Yuxi</creatorcontrib><creatorcontrib>Zhu, Jinlong</creatorcontrib><creatorcontrib>Zhang, Sijia</creatorcontrib><creatorcontrib>Liu, Haozhe</creatorcontrib><creatorcontrib>Yang, Wenge</creatorcontrib><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Mao, Hokwang</creatorcontrib><creatorcontrib>Shen, Guoyin</creatorcontrib><creatorcontrib>Lu, Zhongyi</creatorcontrib><creatorcontrib>Yang, Ren</creatorcontrib><creatorcontrib>Chen, Zhiqiang</creatorcontrib><creatorcontrib>Lin, Zhijun</creatorcontrib><creatorcontrib>Zhao, Yusheng</creatorcontrib><creatorcontrib>Jin, Changqing</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 UK/Ireland</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 Database</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></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Qingqing</au><au>Yu, Xiaohui</au><au>Wang, Xiancheng</au><au>Deng, Zheng</au><au>Lv, Yuxi</au><au>Zhu, Jinlong</au><au>Zhang, Sijia</au><au>Liu, Haozhe</au><au>Yang, Wenge</au><au>Wang, Lin</au><au>Mao, Hokwang</au><au>Shen, Guoyin</au><au>Lu, Zhongyi</au><au>Yang, Ren</au><au>Chen, Zhiqiang</au><au>Lin, Zhijun</au><au>Zhao, Yusheng</au><au>Jin, Changqing</au><format>book</format><genre>document</genre><ristype>GEN</ristype><atitle>Pressure-induced isostructural phase transition and correlation of FeAs coordination with the superconducting properties of 111-type Na1-xFeAs</atitle><jtitle>arXiv.org</jtitle><date>2011-06-28</date><risdate>2011</risdate><eissn>2331-8422</eissn><abstract>The effect of pressure on the crystalline structure and superconducting transition temperature (Tc) of the 111-type Na1-xFeAs system using in situ high pressure synchrotron x-ray powder diffraction and diamond anvil cell techniques is studied. A pressure-induced tetragonal to tetragonal isostructural phase transition was found. The systematic evolution of the FeAs4 tetrahedron as a function of pressure based on Rietveld refinements on the powder x-ray diffraction patterns was obtained. The non-monotonic Tc(P) behavior of Na1-xFeAs is found to correlate with the anomalies of the distance between the anion (As) and the iron layer as well as the bond angle between As-Fe-As for the two tetragonal phases. This behavior provides the key structural information in understanding the origin of the pressure dependence of Tc for 111-type iron pnictide superconductors. A pressure-induced structural phase transition is also observed at 20 GPa.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><oa>free_for_read</oa></addata></record> |
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| subjects | Anomalies Diamond anvil cells Diffraction Diffraction patterns Group 5A compounds Iron Phase transitions Pressure dependence Pressure effects Superconductivity Synchrotron radiation Tetrahedra Transition temperature X ray powder diffraction X-ray diffraction |
| title | Pressure-induced isostructural phase transition and correlation of FeAs coordination with the superconducting properties of 111-type Na1-xFeAs |
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