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Showing 1 to 20 of 73 for “"Electron energy loss spectroscopy"”.

  1. Electron energy loss spectroscopy of transition-metal carbides

    Allison, Craig2011

    Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-13T14:57:08Z No. of bitstreams: 1 1983_allison.pdf: 3824629 bytes, checksum: c0a995c7c2bcca1cad4a44e6d628a004 (MD5)

    uiuc Repository record

  2. Electron Energy Loss Spectroscopy and Optical Properties of Plasmonic Nanostructure

    Cao, YangRice University2015

    … incompressible self-oscillation of conducting electrons in small nanoparticles. A classical spring model could be used to describe plasmon’s behavior. Many different techniques have been applied to understand nanostructure’s plasmonic properties. Electron energy loss spectroscopy (EELS) is one …

    rice Repository record

  3. Mapping plasmon excitations in gold nanostructures using electron energy loss spectroscopy

    Wright, LiamQueen's University Belfast2021

    … and fabricated Au nanostructures using an electron beam as a source of excitation. The motivation for the this work comes from the applications of these nanostructures and the need to understand the physics behind them. We introduce the concept of plasmonics in chapter 1 where we describe …

    qu-belfast Repository record

  4. Collective excitations in layered materials with momentum-resolved electron energy loss spectroscopy

    Kogar, AnshulUniversity of Illinois at Urbana-Champaign2016

    … dielectric function). The measurement of the energy- and momentum-resolved chi(q,w) over a large phase space of q and w, however, presents a significant experimental challenge. Traditional methods to measure chi(q,w) have suffered from either one or more major drawbacks. To address this …

    uiuc Repository record

  5. A study of oxide superconductors by electron energy loss spectroscopy in STEM.

    Browning, Nigel DavidUniversity of Cambridge1992

    … to be observed. By using a Scanning Transmission Electron Microscope (STEM) to study the fluctuations in stoichiometry, the sub-nanometre probe (-0.5nm) allows spatial resolution on the nanometre scale. Coupling the nanometre spatial resolution with electron energy loss spectroscopy (EELS), which …

    cambridge

  6. Electronic collective modes in two dilute conductors with momentum-resolved electron energy-loss spectroscopy

    Rubeck, Samantha IleneUniversity of Illinois at Urbana-Champaign2022

    Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms

    uiuc Repository record

  7. Characterization of collective phenomena in cuprate superconductors by momentum-resolved electron energy loss spectroscopy

    Vig, Sean DUniversity of Illinois at Urbana-Champaign2017

    … exists a wide variety of strongly correlated electronic materials, including high temperature superconductors, exotic topological insulators, and charge density wave materials, that exhibit emergent behavior that cannot be understood through current theories of metals and insulators. These …

    uiuc Repository record

  8. Collective modes in strongly correlated electron systems measured with momentum-resolved electron energy-loss spectroscopy

    Rak, MelindaUniversity of Illinois at Urbana-Champaign2019

    "Strongly correlated electron systems comprise an exciting area of research in condensed matter physics due to the variety of quantum phenomena that results from the strong interactions between the electrons. Strongly correlated materials can be described in terms of weakly interacting, emergent …

    uiuc Repository record

  9. Linear-Scaling Density Functional Theory and Theoretical Electron Energy Loss Spectroscopy Investigations of Surfaces and Defects in Nanomaterials

    Tait, Edward WilliamUniversity of Cambridge2019

    … work presents a method for the computation of electron energy loss spectra for large systems using the onetep code. The foundations of density functional theory will be discussed, with a focus on the linear scaling methods employed by onetep. A method for the prediction of spectra will be …

    cambridge Repository record

  10. Investigation of the optical properties of Bi₂Sr₂Ca<sub>n-1</sub>Cu<sub>n</sub>O<sub>y</sub> (n=1,2) by transmission electron energy loss spectroscopy

    Wang, Yun-YuVirginia Tech1990

    A high energy resolution transmission electron energy loss spectrometer was reassembled for this research project. The vacuum system, electron optical lenses, electronic control elements, and high voltage system were reconditioned. A CAMAC interface system was installed into the spectrometer, and a …

    vt Repository record

  11. Microstructure and Microchemistry of Titanium-Carbide Coated Cemented Carbides

    Sharma, Nirmal KumarUniversity of Illinois at Urbana-Champaign2014

    … contemporary micro-analytical techniques: Auger Electron Spectroscopy, STEM X-ray microchemical analysis and electron energy loss spectroscopy. As most of the analytical technique

    uiuc Repository record

  12. Surface decomposition studies of trimethylgallium on silicon(100)

    Lee, FourmunUniversity of Illinois at Urbana-Champaign2011

    … fundamentally and industrially important in microelectronics processing. In this study, the decomposition of trimethylgallium (TMG) on silicon (100) was investigated using thermal desorption spectroscopy (TDS), x-ray photoelectron spectroscopy (XPS), infrared spectroscopy (IR), and electron energy …

    uiuc Repository record

  13. A Study of Fuel Conversion Chemistry

    Lee, Ivan ChihangUniversity of Illinois at Urbana-Champaign2015

    … has been determined to be 907 +/- 4 kJ/mol using electron energy loss spectroscopy.

    uiuc Repository record

  14. Probing nano-scale atomic and electronic structures of iron-based superconductors

    Hu, HefeiUniversity of Illinois at Urbana-Champaign2013

    … in these materials. Investigating atomic and electronic structures is thus essential to help understand their interesting properties. In this thesis, I have investigated the bulk and thin-film form of iron-based superconductors by using a combination of scanning transmission electron …

    uiuc Repository record

  15. Structure Sensitivity of Ethylene Adsorption on Platinum (Dehydrogenation)

    Hatzikos, George HarryUniversity of Illinois at Urbana-Champaign2014

    … Temperature Programmed Desorption (TPD), Electron Energy Loss Spectroscopy (EELS), Low-Energy Electron Diffraction (LEED) and Auger spectroscopy are applied to study the adsorption of ethylene on the square (1 x 1)Pt(100) and on the pseudo-hexagonal (5 x 20)Pt(100). A model based on the …

    uiuc Repository record

  16. Chemical vapor deposition of copper, copper(I) oxide, and silver from metal-organic precursors

    Jeffries, Patrick MichaelUniversity of Illinois at Urbana-Champaign2011

    … byproducts generated during the deposition, electron energy loss spectroscopy, and temperature programmed desorption experiments indicate that copper(I) oxide is formed by an elimination mechanism and copper metal is formed by deoxygenation of an initially deposited copper(I) oxide phase.

    uiuc Repository record

  17. Heterogeneous decomposition of trimethylaluminum and trimethylgallium on silicon surfaces

    Gow, Thomas Richard, JrUniversity of Illinois at Urbana-Champaign2011

    … and MOMBE. This study uses thermal desorption spectroscopy, x-ray photoelectron spectroscopy, and electron energy loss spectroscopy to examine the decomposition of TMAl at low coverages on heated silicon substrates. In addition, molecular beam methods are employed to investigate the …

    uiuc Repository record

  18. Electron microscopy study of degradation mechanisms in Ni-rich transition metal oxide cathodes for Li-ion batteries

    Morzy, JędrzejUniversity of Cambridge2023

    … This drastic societal change depends on high energy, sustainable, and long lifetime batteries. Among the most promising cathode active materials that enable such batteries is the class of Ni-rich layered transition metal oxides such as LiNi0.8Mn0.1Co0.1O2 (NMC811). However, they exhibit …

    cambridge Repository record

  19. NANOPATTERNING OF FREE-STANDING VAN DER WAALS HETEROSTRUCTURES USING CHARGED PARTICLES

    JAGADESH RANGARAJ2025

    … new opportunities in nanophotonics and optoelectronics. However, achieving such confinement with high spatial and depth resolution in stacked van der Waals heterostructures remains challenging. In this thesis, we demonstrate selective nanopatterning of free-standing hBN-encapsulated graphene …

    nus Repository record

  20. A Study of Amorphous Hydrogenated Titanium-Carbide Films: Structure, Stability, and Role of Hydrogen Doping

    Kaloyeros, Alain E.University of Illinois at Urbana-Champaign1987

    … compound tetraneopentyl-titanium. X-ray and electron diffraction studies confirmed the amorphicity of the coatings, while controlled-heating experiments emphasized their stability against crystallization to higher temperatures ((TURN)1100(DEGREES)C) than typical glassy metals. Analyses of the …

    uiuc Repository record

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