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arXiv 1201.0932cond-mat.mtrl-scicond-mat.str-elphysics.chem-ph
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镍金属中2 p阈值的角相关共振光电发射过程

Angular dependent resonant photoemission processes at the 2p thresholds in nickel metal

M. Magnuson, A. Nilsson, M. Weinelt, N. Mårtensson

摘要:

用同步辐射测量了金属镍的角分辨价带共振光电子能谱。众所周知的6-eV相关卫星在共振时具有约两个数量级的强度增强。作为光子能量的函数的光发射强度的角度依赖性已被研究,并提供了明确的证据干涉效应的所有方式的共振最大值。本文结合共振光电子过程的起源和卫星的性质讨论了观测到的价带和卫星的不同角不对称性β。

英文摘要:

Angle-resolved valence-band resonant photoemission of nickel metal has been measured close to the 2p core-level thresholds with synchrotron radiation. The well-known 6-eV correlation satellite has an intensity enhancement of about two orders of magnitude at resonance. The angular dependence of the photoemission intensity has been studied as function of photon energy and provides unambiguous evidence for interference effects all the way up to the resonance maximum. The observation of different angular asymmetries, β, for the valence band and the satellite is discussed in connection to the origin of the resonant photoemission process and the character of the satellite.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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