globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2019.11.021
论文题名:
Enhancement of superconductivity in organic-inorganic hybrid topological materials
作者: Zhang H.; Rousuli A.; Shen S.; Zhang K.; Wang C.; Luo L.; Wang J.; Wu Y.; Xu Y.; Duan W.; Yao H.; Yu P.; Zhou S.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:3
起始页码: 188
结束页码: 193
语种: 英语
中文关键词: Enhanced superconductivity ; Intercalation of organic cation ; Ionic liquids cations ; Organic-inorganic hybrid materials ; Topological materials ; Weyl semimetals MoTe2 and WTe2
英文关键词: Ionic liquids ; Molybdenum compounds ; Monolayers ; organic-inorganic materials ; Positive ions ; Tellurium compounds ; Topology ; Transition metals ; Organic cations ; Organic-inorganic hybrid ; Organic-inorganic hybrid crystals ; Organic-inorganic hybrid materials ; Superconducting properties ; Topological materials ; Transition metal dichalcogenides ; Weyl semimetals MoTe2 and WTe2 ; Tungsten compounds
英文摘要: Inducing or enhancing superconductivity in topological materials is an important route toward topological superconductivity. Reducing the thickness of transition metal dichalcogenides (e.g. WTe2 and MoTe2) has provided an important pathway to engineer superconductivity in topological matters. However, such monolayer sample is difficult to obtain, unstable in air, and with extremely low Tc. Here we report an experimentally convenient approach to control the interlayer coupling to achieve tailored topological properties, enhanced superconductivity and good sample stability through organic-cation intercalation of the Weyl semimetals MoTe2 and WTe2. The as-formed organic-inorganic hybrid crystals are weak topological insulators with enhanced Tc of 7.0 K for intercalated MoTe2 (0.25 K for pristine crystal) and 2.3 K for intercalated WTe2 (2.8 times compared to monolayer WTe2). Such organic-cation intercalation method can be readily applied to many other layered crystals, providing a new pathway for manipulating their electronic, topological and superconducting properties. © 2019 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170149
Appears in Collections:气候变化与战略

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作者单位: State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing, 100084, China; Department of Mechanical Engineering and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing, 100084, China; Frontier Science Center for Quantum Information, Beijing, 100084, China; Institute for Advanced Study, Tsinghua University, Beijing, 100084, China

Recommended Citation:
Zhang H.,Rousuli A.,Shen S.,et al. Enhancement of superconductivity in organic-inorganic hybrid topological materials[J]. Science Bulletin,2020-01-01,65(3)
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