气候变化领域集成服务门户(CCPortal): Orientation-dependent stereo Wigner time delay and electron localization in a small molecule

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DOI	10.1126/science.aao4731
	Orientation-dependent stereo Wigner time delay and electron localization in a small molecule
	Vos J.; Cattaneo L.; Patchkovskii S.; Zimmermann T.; Cirelli C.; Lucchini M.; Kheifets A.; Landsman A.S.; Keller U.
发表日期	2018
ISSN	0036-8075
起始页码	1326
结束页码	1330
卷号	360 期号:6395
英文摘要	Attosecond metrology of atoms has accessed the time scale of the most fundamental processes in quantum mechanics. Transferring the time-resolved photoelectric effect from atoms to molecules considerably increases experimental and theoretical challenges. Here we show that orientation- and energy-resolved measurements characterize the molecular stereo Wigner time delay. This observable provides direct information on the localization of the excited electron wave packet within the molecular potential. Furthermore, we demonstrate that photoelectrons resulting from the dissociative ionization process of the CO molecule are preferentially emitted from the carbon end for dissociative 2S states and from the center and oxygen end for the 2P states of the molecular ion. Supported by comprehensive theoretical calculations, this work constitutes a complete spatially and temporally resolved reconstruction of the molecular photoelectric effect. © 2017 The Authors.
英文关键词	carbon monoxide; electrochemistry; electron; energy; ionization; oxygen; quantum mechanics; analytical parameters; Article; electrical parameters; electron transport; Fourier transformation; ionization; mathematical computing; mathematical model; molecular dynamics; photon; priority journal; stereo Wigner time delay
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/245925
作者单位	Department of Physics, ETH Zurich, Zurich, 8093, Switzerland; Max Born Institute, Berlin, 12489, Germany; Max Planck Institute for the Physics of Complex Systems, Dresden, D-01187, Germany; Max Planck Korea, Department of Physics, Postech, Pohang, Gyeongbuk, 37673, South Korea; Empa–Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, 8600, Switzerland; Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia; Department of Physics, Politecnico di Milano, Milano, 20133, Italy
推荐引用方式 GB/T 7714	Vos J.,Cattaneo L.,Patchkovskii S.,et al. Orientation-dependent stereo Wigner time delay and electron localization in a small molecule[J],2018,360(6395).
APA	Vos J..,Cattaneo L..,Patchkovskii S..,Zimmermann T..,Cirelli C..,...&Keller U..(2018).Orientation-dependent stereo Wigner time delay and electron localization in a small molecule.Science,360(6395).
MLA	Vos J.,et al."Orientation-dependent stereo Wigner time delay and electron localization in a small molecule".Science 360.6395(2018).