Discovery of the High-Entropy Carbide Ceramic Topological Superconductor Candidate (Ti0.2Zr0.2Nb0.2Hf0.2Ta0.2)C

Zeng，Lingyong1; Wang，Zequan2; Song，Jing3; Lin，Gaoting4; Guo，Ruixin5,6; Luo，Si Chun7; Guo，Shu5,6; Li，Kuan1; Yu，Peifeng1; Zhang，Chao1; Guo，Wei Ming7; Ma，Jie4,8,9; Hou，Yusheng2; Luo，Huixia1

2023

10.1002/adfm.202301929

Advanced Functional Materials   Impact Factor & Quartile

1616-301X

1616-3028

High-entropy ceramics (HECs) are solid solutions of inorganic compounds with one or more Wyckoff sites shared by equal or near-equal atomic ratios of multi-principal elements. Material design and property tailoring possibilities emerge from this new class of materials. Herein, the discovery of superconductivity 2.35 K and topological properties in the (TiZrNbHfTa)C high-entropy carbide ceramic (HECC) is reported, which is not observed before in any of the investigated HECC. Density functional theory calculations show that six type-II Dirac points exist in (TiZrNbHfTa)C, which mainly contributed from the t orbitals of transition metals and the p orbitals of C. Due to the stability of the structure, robust superconductivity (SC) under pressure in this HEC superconductor is also observed. This study expands the physical properties of HECs, which may become a new material platform for SC research, especially for studying the coupling between SC and topological physics.

high pressure high-entropy ceramic superconductivity topological superconductor

SCI

English

NI Journal Papers ; NI论文

Others

National Natural Science Foundation of China["12204514","11922415","12104518","22205091","WHMFC 202122"] ; Guangdong Basic and Applied Basic Research Foundation["2022A1515011168","2019A1515011718","2022A1515012643"] ; Guangzhou Basic and Applied Basic Research Foundation[202201011118] ; Key Research & Development Program of Guangdong Province, China[2019B110209003] ; Pearl River Scholarship Program of Guangdong Province Universities and Colleges[20191001] ; Institute of Physics Chinese Academy of Sciences Startup Funds[BR202118] ; null[12274471]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000999208200001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

2-s2.0-85160683062

Scopus

1.School of Materials Science and Engineering,State Key Laboratory of Optoelectronic Materials and Technologies,Key Lab of Polymer Composite & Functional Materials,Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices,Sun Yat-Sen University,Guangzhou,510275,China
2.Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices,Center for Neutron Science and Technology,School of Physics,Sun Yat-Sen University,Guangzhou,510275,China
3.Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing,100190,China
4.Key Laboratory of Artificial Structures and Quantum Control,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai,200240,China
5.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
6.International Quantum Academy,Shenzhen,518048,China
7.School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou,510006,China
8.Wuhan National High Magnetic Field Center,Huazhong University of Science and Technology,Wuhan,430074,China
9.Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing,Hankou Road 22,210093,China

Zeng，Lingyong,Wang，Zequan,Song，Jing,et al. Discovery of the High-Entropy Carbide Ceramic Topological Superconductor Candidate (Ti0.2Zr0.2Nb0.2Hf0.2Ta0.2)C[J]. Advanced Functional Materials,2023,33(40).

Zeng，Lingyong.,Wang，Zequan.,Song，Jing.,Lin，Gaoting.,Guo，Ruixin.,...&Luo，Huixia.(2023).Discovery of the High-Entropy Carbide Ceramic Topological Superconductor Candidate (Ti0.2Zr0.2Nb0.2Hf0.2Ta0.2)C.Advanced Functional Materials,33(40).

Zeng，Lingyong,et al."Discovery of the High-Entropy Carbide Ceramic Topological Superconductor Candidate (Ti0.2Zr0.2Nb0.2Hf0.2Ta0.2)C".Advanced Functional Materials 33.40(2023).