globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2019.11.010
论文题名:
Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal
作者: Wang H.; He Y.; Liu Y.; Yuan Z.; Jia S.; Ma L.; Liu X.-J.; Wang J.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:1
起始页码: 21
结束页码: 26
语种: 英语
中文关键词: Coexistence of ferromagnetism and superconductivity ; Ferromagnetic tip-induced superconductivity ; Point contact spectroscopy ; Topological superconductivity ; Weyl semimetal
英文关键词: Ferromagnetic materials ; Microcomputers ; Point contacts ; Quantum chemistry ; Quantum theory ; Single crystals ; Tantalum compounds ; Topology ; Ferromagnetism and superconductivity ; Magneto-transport measurement ; Point contact spectra ; Point contact spectroscopy ; Quantum oscillations ; Tip-induced ; Tunneling transports ; Unconventional superconductivity ; Ferromagnetism
英文摘要: The metallic tip-induced superconductivity in normal Weyl semimetal offers a promising platform to study topological superconductivity, which is currently a research focus in condensed matter physics. Here we experimentally uncover that unconventional superconductivity can be induced by hard point contact (PC) method of ferromagnetic tips in TaAs single crystals. The magneto-transport measurements of the ferromagnetic tip-induced superconducting (FTISC) states exhibit the quantum oscillations, which reveal that the superconductivity is induced in the topologically nontrivial Fermi surface of the Weyl semimetal, and show compatibility of ferromagnetism and induced superconductivity. We further measure the point contact spectra (PCS) of tunneling transport for FTISC states which are potentially of nontrivial topology. Considering that the magnetic Weyl semimetal with novel superconductivity is hard to realize in experiment, our results show a new route to investigate the unconventional superconductivity by combining the topological semimetal with ferromagnetism through hard PC method. © 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/170060
Appears in Collections:气候变化与战略

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作者单位: International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China; Tianjin International Center for Nano Particles and Nano Systems, Tianjin University, Tianjin, 300072, China; Department of Physics, Capital Normal University, Beijing, 100048, China; Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China; CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, 100190, China; Beijing Academy of Quantum Information Sciences, Beijing, 100193, China

Recommended Citation:
Wang H.,He Y.,Liu Y.,et al. Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal[J]. Science Bulletin,2020-01-01,65(1)
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