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DOI	10.1126/science.aaw8850
	Incoherent strange metal sharply bounded by a critical doping in Bi2212
	Chen S.-D.; Hashimoto M.; He Y.; Song D.; Xu K.-J.; He J.-F.; Devereaux T.P.; Eisaki H.; Lu D.-H.; Zaanen J.; Shen Z.-X.
发表日期	2019
ISSN	0036-8075
起始页码	1099
结束页码	1102
卷号	366 期号:6469
英文摘要	In normal metals, macroscopic properties are understood using the concept of quasiparticles. In the cuprate high-temperature superconductors, the metallic state above the highest transition temperature is anomalous and is known as the “strange metal.” We studied this state using angle-resolved photoemission spectroscopy. With increasing doping across a temperature-independent critical value pc ~ 0.19, we observed that near the Brillouin zone boundary, the strange metal, characterized by an incoherent spectral function, abruptly reconstructs into a more conventional metal with quasiparticles. Above the temperature of superconducting fluctuations, we found that the pseudogap also discontinuously collapses at the very same value of pc. These observations suggest that the incoherent strange metal is a distinct state and a prerequisite for the pseudogap; such findings are incompatible with existing pseudogap quantum critical point scenarios. © 2019 American Association for the Advancement of Science. All rights reserved.
英文关键词	metal; high temperature; metal; nanoparticle; superconductivity; angle resolved photoemission spectroscopy; anisotropy; Article; doping; elasticity; high temperature; low temperature; priority journal; room temperature; surface property; temperature dependence; temperature sensitivity; transition temperature
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243299
作者单位	Departments of Applied Physics and Physics, Stanford University, Stanford, CA 94305, United States; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, United States; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States; National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan; Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, United States; Institute Lorentz for Theoretical Physics, Leiden University, Leiden, 2300 RA, Netherlands; Department of Physics, University of California, Berkeley, CA 94709, United States; Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, South Korea; Department of Physics, University of Science and Technology of China, Hefei, 230026, China
推荐引用方式 GB/T 7714	Chen S.-D.,Hashimoto M.,He Y.,et al. Incoherent strange metal sharply bounded by a critical doping in Bi2212[J],2019,366(6469).
APA	Chen S.-D..,Hashimoto M..,He Y..,Song D..,Xu K.-J..,...&Shen Z.-X..(2019).Incoherent strange metal sharply bounded by a critical doping in Bi2212.Science,366(6469).
MLA	Chen S.-D.,et al."Incoherent strange metal sharply bounded by a critical doping in Bi2212".Science 366.6469(2019).