典型文献
Synthesis and superconductivity in yttrium superhydrides under high pressure
文献摘要：
Flourishing rare earth superhydrides are a class of recently discovered materials that exhibit near-room-temperature superconductivity at high pressures,ushering in a new era of superconductivity research at high pressures.Yttrium su-perhydrides drew the most attention among these superhydrides due to their abundance of stoichiometries and excellent superconductivities.Here,we carried out a comprehensive study of yttrium superhydrides in a wide pressure range of 140 GPa-300 GPa.We successfully synthesized a series of superhydrides with the compositions of YH4,YH6,YH7,and YH9,and reported superconducting transition temperatures of 82 K at 167 GPa,218 K at 165 GPa,29 K at 162 GPa,and 230 K at 300 GPa,respectively,as evidenced by sharp drops in resistance.The structure and superconductivity of YH4 were taken as a representative example and were also examined using x-ray diffraction measurements and the superconductivity suppression under external magnetic fields,respectively.Clathrate YH10,a candidate for room-temperature superconduc-tor,was not synthesized within the study pressure and temperature ranges of up to 300 GPa and 2000 K.The current study established a detailed foundation for future research into room-temperature superconductors in polynary yttrium-based superhydrides.
文献关键词：
中图分类号：
作者姓名：
Yingying Wang;Kui Wang;Yao Sun;Liang Ma;Yanchao Wang;Bo Zou;Guangtao Liu;Mi Zhou;Hongbo Wang
作者机构：
State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China;International Center of Computational Method&Software,College of Physics,Jilin University,Changchun 130012,China;International Center of Future Science,Jilin University,Changchun 130012,China
文献出处：
引用格式：
[1]Yingying Wang;Kui Wang;Yao Sun;Liang Ma;Yanchao Wang;Bo Zou;Guangtao Liu;Mi Zhou;Hongbo Wang-.Synthesis and superconductivity in yttrium superhydrides under high pressure)[J].中国物理B（英文版）,2022(10):118-123
A类：
superhydrides,Flourishing,perhydrides,stoichiometries,superconductivities,YH4,YH6,YH7,YH9,Clathrate,YH10,superconduc,polynary
B类：
Synthesis,superconductivity,yttrium,under,high,rare,earth,class,recently,discovered,materials,that,exhibit,near,room,pressures,ushering,new,research,Yttrium,drew,most,attention,among,these,due,their,abundance,excellent,Here,carried,out,comprehensive,study,wide,GPa,We,successfully,synthesized,series,compositions,reported,superconducting,transition,temperatures,respectively,evidenced,by,sharp,drops,resistance,structure,were,taken,representative,example,also,examined,using,ray,diffraction,measurements,suppression,external,magnetic,fields,candidate,was,not,within,ranges,current,established,detailed,foundation,future,into,superconductors
AB值：
0.440548
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