Self-adaptive hetero-phase superlattices in TaS_(2) via layer-resolved 1T-to-1H transformationsOA
Artificial hetero-phase superlattices constructed from transition metal dichalcogenides(TMDs)provide a powerful platform for exploring exotic physical phenomena and delivering structurally robust devices.However,achieving deterministic control over phase-stacking sequences in bulk architectures remains a significant challenge.Here,we report a self-adaptive superlattice system formed in TaS_(2) crystals through an in-situ structural phase transition.Coordinated inter-layer sliding and intra-layer S-plane sliding drive layer-resolved 1T-to-1H transformations.This two-dimensional transformation pathway enables deterministic and dynamic engineering of hetero-phase sequences within a three-dimensional(3D)crystal,with the resulting interfaces stabilized by persistent inter-phase coupling.Within these reconfigurable superlattices,we identify two distinct superconducting states arising from paired 1H/1T bilayers and sandwiched 1H/1T/1H′trilayers.The charge density wave order remaining in the 1T layer suppresses superconductivity in the 1H/1T superlattice.Our findings establish an in situ,sequence-controllable phase engineering strategy for constructing bulk TMD hetero-phase homostructures and highlight stacking configuration as a powerful degree of freedom for designing TMD-based quantum materials and devices.
Zhenyu Ding;Yihao Wang;Rui Li;Jingjing Gao;Jialiang Jiang;Jin Tang;Yuyan Han;Qian Xu;Junfa Zhu;Wenqian Tu;Wenjian Lu;Yingguo Yang;Zhihao Li;Xingyu Gao;Zhe Qu;Yuping Sun;Xuan Luo;Xiaoping Yang;Hai Xu;Yimin Xiong;Liang Cao
Anhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230026,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230026,ChinaKey Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaDepartment of Physics,School of Physics,Anhui University,Hefei 230601,China Anhui Provincial Key Laboratory of Magnetic Functional Materials and Devices,Anhui University,Hefei 230601,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaNational Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,ChinaNational Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,ChinaKey Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaKey Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaState Key Laboratory of Photovoltaic Science and Technology,School of Microelectronics,Fudan University,Shanghai 200433,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China Yangtze Memory Technologies Co.,Ltd.,Wuhan 430205,ChinaShanghai Synchrotron Radiation Facility(SSRF),Zhangjiang Laboratory,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China Key Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,ChinaKey Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,ChinaSchool of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China State Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,Anhui University,Hefei 230601,ChinaDepartment of Physics,School of Physics,Anhui University,Hefei 230601,China Anhui Provincial Key Laboratory of Magnetic Functional Materials and Devices,Anhui University,Hefei 230601,China Hefei National Laboratory,Hefei 230028,ChinaAnhui Provincial Key Laboratory of Low-Energy Quantum Materials and Devices,High Magnetic Field Laboratory,HFIPS,Chinese Academy of Sciences,Hefei 230031,China
数理科学
artificial superlatticessuperconductivityinter-phase couplingstacking sequencesliding
《National Science Review》 2026 (11)
P.312-324,13
supported by the National Key Research and Development Program of China(2021YFA1600200,2019YFA0405601,2022YFA1403200 and 2023YFA1607402)the Innovation Program for Quantum Science and Technology(2021ZD0302802)the National Natural Science Foundation of China(NSFC)(12074385,12074372,12174397,12204486,11727902,11674326,11474288,12274412,U1832141,U1932217 and 22272157)supported by Anhui University through the start-up project(S020318001/020)supported by the High Magnetic Field Laboratory of Anhui Province under Contract No.AHHM-FX-2020-02the Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures(JZHKYPT-2021-08)the Anhui Provincial Major S&T Project(s202305a1202005).
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