气候变化领域集成服务门户(CCPortal): Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal

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DOI	10.1016/j.scib.2019.11.010
	Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal
	Wang H.; He Y.; Liu Y.; Yuan Z.; Jia S.; Ma L.; Liu X.-J.; Wang J.
发表日期	2020
ISSN	20959273
起始页码	21
结束页码	26
卷号	65 期号:1
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
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
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207204
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
推荐引用方式 GB/T 7714	Wang H.,He Y.,Liu Y.,et al. Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal[J],2020,65(1).
APA	Wang H..,He Y..,Liu Y..,Yuan Z..,Jia S..,...&Wang J..(2020).Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal.Science Bulletin,65(1).
MLA	Wang H.,et al."Ferromagnetic tip induced unconventional superconductivity in Weyl semimetal".Science Bulletin 65.1(2020).