The auger parameter, its utility and advantages: a review

Wagner, C. D.; Joshi, A.

doi:10.1016/0368-2048(88)85018-7

Cited by 358 publications

(172 citation statements)

References 88 publications

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“…To address this issue empirically, Wagner established the Auger parameter (α) [10], which consists of the difference between the kinetic energies (KEs) of XPS and Auger peaks from the same atom in a given material [11]. Due to the inverse relationship between BE and KE, and the arbitrary nature of the absolute value of α, which is dependent on the photon energy of the excitation source, one can just as easily describe this number as the sum of the XPS BE and the Auger transition KE; a fact that has been pointed out by Wagner and Taylor * kaden@fhi-berlin.mpg.de and employed by others [12,13].…”

Section: Introductionmentioning

confidence: 99%

Understanding surface core-level shifts using the Auger parameter: A study of Pd atoms adsorbed on ultrathin SiO2films

et al. 2014

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Auger parameter ( α) measurements have been employed to determine the extent to which initial-and final-state effects govern surface core-level shifts in x-ray photoelectron spectroscopy (XPS) measurements of Pd atoms confined between a bilayer SiO 2 film and its Ru(0001) support. For atoms bound in this manner, we note negative binding energy shifts ( BEs) of ß0.3 eV, relative to the Pd 3d peak position in the bulk, and attribute these shifts to large variations in the initial-state orbital energies of the supported atoms (ß1.1 eV towards E F ), coupled with decreased final-state relaxation contributions (ß0.8 eV). Theoretical calculations reveal that, despite small partial positive charges and decreased final-state screening, the decreased 4d-5sp hybridization of the undercoordinated Pd atoms results in large enough upward 3d orbital-energy shifts to yield the net-negative BE noted by XPS.

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Section: Introductionmentioning

confidence: 99%

Understanding surface core-level shifts using the Auger parameter: A study of Pd atoms adsorbed on ultrathin SiO2films

et al. 2014

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“…Separation between the two peaks was quite constant, and approximately equal to 3.3 ± 0.1 eV. The position of the major component was used to calculate modified auger parameters (α') in order to assess zinc chemical speciation [48]. At increasing φ values, the formation of zinc fluoride (ZnF2) could be observed.…”

Section: Surface Analytical Characterizationmentioning

confidence: 99%

New Insights in the Ion Beam Sputtering Deposition of ZnO-Fluoropolymer Nanocomposites

et al. 2018

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Abstract:Surface modification treatments able to confer antistain/antibacterial properties to natural or synthetic materials are receiving increasing attention among scientists. Ion beam co-sputtering (IBS) of zinc oxide (ZnO) and poly-tetrafluoroethylene (PTFE) targets allows for the preparation of novel multifunctional coatings composed of antimicrobial ZnO nanoparticles (NPs) finely dispersed in an antistain PTFE polymeric matrix. Remarkably, IBS has been proved to be successful in the controlled deposition of thin nanocoatings as an alternative to wet methods. Moreover, tuning IBS deposition parameters allows for the control of ZnONP loadings, thus modulating the antibacterial/antistain coating's final properties. All the deposited coatings were fully characterized by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and transmission electron microscopy (TEM) in order to obtain information on the materials' surface composition, with deep insight into the nanocoatings' morphology as a function of the ZnONP loadings. An analysis of high-resolution XP spectra evidenced a high degree of polymer defluorination along with the formation of inorganic fluorides at increasing ZnO volume ratios. Hence, post-deposition treatments for fluorides removal, performed directly in the deposition chamber, were successfully developed and optimized. In this way, a complete stoichiometry for inorganic nanophases was obtained, allowing for the conversion of fluorides into ZnO.

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“…в [1]). В базе данных Science Direct [2], поддержи-ваемой издательством Elsevier Science Ltd., зафиксировано 2 ра-боты [3,4], в которых содержатся упоминания о наноструктур-ных интерметаллических соединениях, опубликованные в 1988 году (среди 32 работ по наноструктурным материалам). В 2003 году число материаловедческих работ по наноструктурным мате-риалам превысило 3100, из них 138 было посвящено нанострук-турным интерметаллидам.…”

Section: Introductionunclassified

Nanoscale States in Metals, Alloys, and Intermetallic Compounds: Methods of Manufacture, Structure, Properties

Shevchenko

Stetsenko

2004

Usp. Fiz. Met.

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Наноструктурные металлические материалы, обладающие уникальны-ми свойствами благодаря характерному структурному размеру, сопос-тавимому с межатомными расстояниями в кристалле, нашли широкое применение и являются основой многих современных технологий. Цель данного обзора -представить общую картину исследований наност-руктурных состояний в компактных металлах, сплавах и интерметал-лидах, охарактеризовать основные методы получения компактных на-ноструктурных материалов, особенности их структуры и свойств. Так же кратко представлены основные модели, объясняющие особенности строения и аномальные свойства металлов и сплавов в нанокристалли-ческом состоянии.Наноструктурні металічні матеріали, що мають унікальні властивості завдяки характерному структурному параметру, співставимому із мі-жатомними відстанями у кристалі, знайшли широке застосування та є основою багатьох сучасних технологій. Мета цього огляду -предста-вити загальну картину досліджень наноструктурних станів у компакт-них металах, сплавах та інтерметалічних сполуках, дати характерис-тику основних методів отримання компактних наноструктурних мате-ріалів, їх властивостей та структурних особливостей. Також стисло представлено основні моделі, що пояснюють особливості будови та ано-мальні властивості металів та сплавів у нанокристалічному стані. Nanocrystalline metallic materials have been recognized as perspective materials for a wide range of modern technologies due to their unique properties, occurring because of their mainly structural parameters, which are comparable with the interatomic distances. This review objective is to characterize the current state of art in investigation of the nanoscale metals, alloys, and intermetallic compounds. Basic methods for preparing compact nanocrystalline materials are discussed. Recent results Успехи физ. мет. / Usp. Fiz. Met. 2004, т. 5, сс. 219-255 Îòòèñêè äîñòóïíû íåïîñðåäñòâåííî îò èçäàòåëÿ Ôîòîêîïèðîâàíèå ðàçðåøåíî òîëüêî â ñîîòâåòñòâèè ñ ëèöåíçèåé  2004 ÈÌÔ (Èíñòèòóò ìåòàëëîôèçèêè èì. Ã. Â. Êóðäþìîâà ÍÀÍ Óêðàèíû) Íàïå÷àòàíî â Óêðàèíå.

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The auger parameter, its utility and advantages: a review

Cited by 358 publications

References 88 publications

Understanding surface core-level shifts using the Auger parameter: A study of Pd atoms adsorbed on ultrathin SiO2films

Understanding surface core-level shifts using the Auger parameter: A study of Pd atoms adsorbed on ultrathin SiO2films

New Insights in the Ion Beam Sputtering Deposition of ZnO-Fluoropolymer Nanocomposites

Nanoscale States in Metals, Alloys, and Intermetallic Compounds: Methods of Manufacture, Structure, Properties

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