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| Distinct superconducting behaviors of pressurized WB2 and ReB2 with different local B layers | |
| 2022-08 | |
| Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| ISSN | 1674-7348 |
| EISSN | 1869-1927 |
| Volume | 65Issue:8 |
| DOI | 10.1007/s11433-022-1911-x |
| Abstract | The recent discovery of superconductivity up to 32 K in the pressurized MoB2 reignites the interest in exploring high-T-c superconductors in transition-metal diborides. Inspired by that work, we turn our attention to the 5d transition-metal diborides. Here we systematically investigate the responses of both structural and physical properties of WB2 and ReB2 to external pressure, which possess different types of boron layers. Similar to MoB2, the pressure-induced superconductivity was also observed in WB2 above 60 GPa with a maximum T-c of 15 K at 100 GPa, while no superconductivity was detected in ReB2 in this pressure range. Interestingly, the structures at ambient pressure for both WB2 and ReB2 persist to high pressure without structural phase transitions. Theoretical calculations suggest that the ratio of flat boron layers in this class of transition-metal diborides may be crucial for the appearance of high T-c. The combined theoretical and experimental results highlight the effect of the geometry of boron layers on superconductivity and shed light on the exploration of novel high-T-c superconductors in borides. |
| Keyword | superconductivity high pressure diborides 74 70 -b 74 62 Fj 74 70 Dd |
| URL | 查看原文 |
| Indexed By | SCI ; SCIE ; EI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China["2018YFA0704300","2018YFE0202600","2017YFA0302903"] ; National Natural Science Foundation of China["U1932217","11974246","12004252","12174443","11774424"] ; Natural Science Foundation of Shanghai[19ZR1477300] ; Science and Technology Commission of Shanghai Municipality[19JC1413900] ; Shanghai Science and Technology Plan[21DZ2260400] ; Beijing Natural Science Foundation[Z200005] ; Fundamental Research Funds for the Central Universities and Research Funds of Renmin University of China (RUC)["18XNLG14","19XNLG13","19XNLG17","22XNKJ40"] ; Analytical Instrumentation Center[SPSTAIC10112914] |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000825793800001 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/206309 |
| Collection | 物质科学与技术学院_PI研究组_齐彦鹏组 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 物质科学与技术学院_公共科研平台_拓扑物理实验室 |
| Corresponding Author | Lei, Hechang; Liu, Kai; Qi, Yanpeng |
| Affiliation | 1.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China; 2.Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing; 100872, China; 3.ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai; 201210, China; 4.Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai; 201210, China |
| First Author Affilication | School of Physical Science and Technology |
| Corresponding Author Affilication | School of Physical Science and Technology; ShanghaiTech University |
| First Signature Affilication | School of Physical Science and Technology |
| Recommended Citation GB/T 7714 | Pei, Cuiying,Zhang, Jianfeng,Gong, Chunsheng,et al. Distinct superconducting behaviors of pressurized WB2 and ReB2 with different local B layers[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2022,65(8). |
| APA | Pei, Cuiying.,Zhang, Jianfeng.,Gong, Chunsheng.,Wang, Qi.,Gao, Lingling.,...&Qi, Yanpeng.(2022).Distinct superconducting behaviors of pressurized WB2 and ReB2 with different local B layers.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,65(8). |
| MLA | Pei, Cuiying,et al."Distinct superconducting behaviors of pressurized WB2 and ReB2 with different local B layers".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 65.8(2022). |
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