典型文献
Titanium doped kagome superconductor CsV3-xTixSb5 and two distinct phases
文献摘要：
The vanadium-based kagome superconductor CsV3Sb5 has attracted tremendous attention due to its unexcepted anomalous Hall effect(AHE),charge density waves(CDWs),nematicity,and a pseudogap pair density wave(PDW)coexisting with unconventional strong-coupling superconductivity.The origins of CDWs,unconventional superconductivity,and their correlation with different electronic states in this kagome system are of great significance,but so far,are still under debate.Chemical doping in the kagome layer provides one of the most direct ways to reveal the intrinsic physics,but remains unexplored.Here,we report,for the first time,the synthesis of Ti-substituted CsV3Sb5 single crystals and its rich phase dia-gram mapping the evolution of intertwining electronic states.The Ti atoms directly substitute for V in the kagome layers.CsV3-xTixSb5 shows two distinct superconductivity phases upon substitution.The Ti slightly-substituted phase displays an unconventional V-shaped superconductivity gap,coexisting with weakening CDW,PDW,AHE,and nematicity.The Ti highly-substituted phase has a U-shaped supercon-ductivity gap concomitant with a short-range rotation symmetry breaking CDW,while long-range CDW,twofold symmetry of in-plane resistivity,AHE,and PDW are absent.Furthermore,we also demonstrate the chemical substitution of V atoms with other elements such as Cr and Nb,showing a different mod-ulation on the superconductivity phases and CDWs.These findings open up a way to synthesise a new family of doped CsV3Sb5 materials,and further represent a new platform for tuning the different corre-lated electronic states and superconducting pairing in kagome superconductors.
文献关键词：
中图分类号：
作者姓名：
Haitao Yang;Zihao Huang;Yuhang Zhang;Zhen Zhao;Jinan Shi;Hailan Luo;Lin Zhao;Guojian Qian;Hengxin Tan;Bin Hu;Ke Zhu;Zouyouwei Lu;Hua Zhang;Jianping Sun;Jinguang Cheng;Chengmin Shen;Xiao Lin;Binghai Yan;Xingjiang Zhou;Ziqiang Wang;Stephen J.Pennycook;Hui Chen;Xiaoli Dong;Wu Zhou;Hong-Jun Gao
作者机构：
Beijing National Center for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100190,China;Department of Condensed Matter Physics,Weizmann Institute of Science,Rehovot 7610001,Israel;Department of Physics,Boston College,Chestnut Hill,MA 02467,USA
文献出处：
引用格式：
[1]Haitao Yang;Zihao Huang;Yuhang Zhang;Zhen Zhao;Jinan Shi;Hailan Luo;Lin Zhao;Guojian Qian;Hengxin Tan;Bin Hu;Ke Zhu;Zouyouwei Lu;Hua Zhang;Jianping Sun;Jinguang Cheng;Chengmin Shen;Xiao Lin;Binghai Yan;Xingjiang Zhou;Ziqiang Wang;Stephen J.Pennycook;Hui Chen;Xiaoli Dong;Wu Zhou;Hong-Jun Gao-.Titanium doped kagome superconductor CsV3-xTixSb5 and two distinct phases)[J].科学通报（英文版）,2022(21):2176-2185
A类：
CsV3,xTixSb5,unexcepted,nematicity,intertwining
B类：
Titanium,doped,kagome,distinct,phases,vanadium,CsV3Sb5,attracted,tremendous,attention,due,its,anomalous,Hall,effect,AHE,charge,density,waves,CDWs,pseudogap,PDW,coexisting,unconventional,strong,coupling,superconductivity,origins,their,correlation,different,electronic,states,this,system,are,great,significance,but,far,still,under,debate,Chemical,doping,provides,one,most,ways,reveal,intrinsic,physics,remains,unexplored,Here,report,first,substituted,single,crystals,rich,dia,gram,mapping,evolution,atoms,directly,layers,shows,upon,substitution,slightly,displays,shaped,weakening,highly,concomitant,short,range,rotation,symmetry,breaking,while,long,twofold,plane,resistivity,absent,Furthermore,also,demonstrate,chemical,other,elements,such,Nb,showing,mod,ulation,These,findings,open,synthesise,new,family,materials,further,represent,platform,tuning,lated,superconducting,pairing,superconductors
AB值：
0.481628
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