نتایج جستجو برای: electron energy loss spectroscopy

تعداد نتایج: 1449851  

Journal: :Microscopy 2018
Ian MacLaren Kirsty J Annand Colin Black Alan J Craven

Electron energy-loss spectroscopy (EELS) has been investigated in the range from 2 to >10 keV using an optimized optical coupling of the microscope to the spectrometer to improve the high loss performance in EELS. It is found that excellent quality data can now be acquired up until about 5 keV, suitable for both energy loss near edge structure (ELNES) studies of oxidation and local chemistry, a...

Journal: :Ultramicroscopy 2021

Exploiting the information provided by electron energy-loss spectroscopy (EELS) requires reliable access to low-loss region where zero-loss peak (ZLP) often overwhelms contributions associated inelastic scatterings off specimen. Here we deploy machine learning techniques developed in particle physics realise a model-independent, multidimensional determination of ZLP with faithful uncertainty es...

1999
Q. Guo D. Y. Kim S. C. Street D. W. Goodman

Ordered binary oxide films of vanadium oxide have been prepared on an aluminum oxide film supported on Mo~110! under ultrahigh vacuum conditions and characterized by various surface analytical techniques. Auger electron spectroscopy, low energy electron diffraction, high-resolution electron loss spectroscopy, x-ray photoelectron spectroscopy and ion scattering spectroscopy indicate that the van...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2002

Journal: :Science and technology of advanced materials 2010
Jeungwoo Lee Seisuke Nigo Yoshihiro Nakano Seiichi Kato Hideaki Kitazawa Giyuu Kido

Anodic porous alumina with duplex layers exhibits a voltage-induced switching effect and is a promising candidate for resistive random access memory. The nanostructural analysis of porous alumina is important for understanding the switching effect. We investigated the difference between the two layers of an anodic porous alumina film using transmission electron microscopy and electron energy-lo...

Journal: :Physical review letters 2012
M D Rossell R Erni M P Prange J-C Idrobo W Luo R J Zeches S T Pantelides R Ramesh

We determine the atomic structure of the pseudotetragonal T phase and the pseudorhombohedral R phase in highly strained multiferroic BiFeO(3) thin films by using a combination of atomic-resolution scanning transmission electron microscopy and electron energy-loss spectroscopy. The coordination of the Fe atoms and their displacement relative to the O and Bi positions are assessed by direct imagi...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1393

در این پژوهش نحوه ساخت نانوکامپوزییت eva/ag و اثر ضد میکروبی آن در درصدهای مختلف نانو ذره نقره مورد بررسی قرار گرفته است.نانوکامپوزیت حاصل از نطر شکل شناختی ، اندازه ذرات، ساختمان شیمیایی ، با استفاده از تستهای sem(scanning electrou microscopy)،tem (transmission electron microscope) ، xrd (x-ray fluorescence spectroscopy) ،ftir (fourier transform infrared spectroscopy) مورد ارزیابی قرار گرفت. د...

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