Search Results - "Kurmaev, E. Z"

Unveiling the Atomic and Electronic Structure of Stacked-Cup Carbon Nanofibers by Boukhvalov, D. W., Zhidkov, I. S., Kiryakov, A., Menéndez, J. L., Fernández-García, L., Kukharenko, A. I., Cholakh, S. O., Zatsepin, A. F., Kurmaev, E. Z.

“…We report results of comprehensive experimental exploration (X-ray photoemission, Raman and optical spectroscopy) of carbon nanofibers (CNFs) in combination…”
Get full text

Structural and Band Gap Investigation of GaN:ZnO Heterojunction Solid Solution Photocatalyst Probed by Soft X-ray Spectroscopy by McDermott, E. J, Kurmaev, E. Z, Boyko, T. D, Finkelstein, L. D, Green, R. J, Maeda, K, Domen, K, Moewes, A

“…We have studied the electronic structure of (Ga1–x Zn x )­(N1–x O x ) as a function of zinc and oxygen concentration (x) using soft X-ray emission (XES) and…”
Get full text

Bulk vs. Surface Structure of 3d Metal Impurities in Topological Insulator Bi2Te3 by Leedahl, B., Boukhvalov, D. W., Kurmaev, E. Z., Kukharenko, A., Zhidkov, I. S., Gavrilov, N. V., Cholakh, S. O., Le, P. Huu, Luo, C. Wei, Moewes, A.

“…Topological insulators have become one of the most prominent research topics in materials science in recent years. Specifically, Bi 2 Te 3 is one of the most…”
Get full text

Electronic Structure of the Nucleobases by MacNaughton, J, Moewes, A, Kurmaev, E. Z

“…We present a comparison between experimental and calculated soft X-ray spectra of DNA's nucleobases, adenine (A), guanine (G), cytosine (C), and thymine (T)…”
Get full text

Carbon States in Carbon-Encapsulated Nickel Nanoparticles Studied by Means of X-ray Absorption, Emission, and Photoelectron Spectroscopies by Galakhov, V. R, Buling, A, Neumann, M, Ovechkina, N. A, Shkvarin, A. S, Semenova, A. S, Uimin, M. A, Yermakov, A. Ye, Kurmaev, E. Z, Vilkov, O. Y, Boukhvalov, D. W

“…The electronic structure of nickel nanoparticles encapsulated in carbon was characterized by photoelectron, X-ray absorption, and X-ray emission…”
Get full text

Band gap engineering of graphene oxide by chemical modification by Hunt, A., Kurmaev, E.Z., Moewes, A.

“…The method with which one creates a sample of graphene oxide paper has a strong impact on its electronic structure. Using X-ray emission spectroscopy and X-ray…”
Get full text

Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid by Korotin, D. M., Bartkowski, S., Kurmaev, E. Z., Borchers, C., Müller, M., Neumann, M., Gunderov, D. V., Valiev, R. Z., Cholakh, S. O.

“…XPS measurements of coarse‐grained and nanostructured nitinol (Ni50.2Ti49.8) before and after chemical treatment in hydrofluoric acid (40% HF, 1 min) are…”
Get full text

XPS and DFT study of pulsed Bi-implantation of bulk and thin-films of ZnO—The role of oxygen imperfections by Zatsepin, D.A., Boukhvalov, D.W., Gavrilov, N.V., Kurmaev, E.Z., Zhidkov, I.S.

“…[Display omitted] •Both theory and experiment evidence similarity of patterns of Bi-implantation in surface and bulk ZnO.•In the bulk morphology of ZnO both…”
Get full text

Dependence of DNA Electronic Structure on Environmental and Structural Variations by MacNaughton, J. B, Moewes, A, Lee, J. S, Wettig, S. D, Kraatz, H.-B, Ouyang, L. Z, Ching, W. Y, Kurmaev, E. Z

“…We present experimental and theoretical evidence that varying the local environment and physical structure of dried DNA has a direct impact on its electronic…”
Get full text

Sn-loss effect in a Sn-implanted a-SiO2 host-matrix after thermal annealing: A combined XPS, PL, and DFT study by Zatsepin, D.A., Zatsepin, A.F., Boukhvalov, D.W., Kurmaev, E.Z., Gavrilov, N.V.

“…•Fabrication and annealing of Sn-doped amorphous SiO2 were studied experimentally and theoretically.•We demonstrate that ions of impurities push ions of host…”
Get full text

Oxygen x-ray emission and absorption spectra as a probe of the electronic structure of strongly correlated oxides by Kurmaev, E. Z., Wilks, R. G., Moewes, A., Finkelstein, L. D., Shamin, S. N., Kuneš, J.

Get full text

Cu-Site Disorder in CuAl2O4 as Studied by XPS Spectroscopy by Zhidkov, I. S., Belik, A. A., Kukharenko, A. I., Cholakh, S. O., Taran, L. S., Fujimori, A., Streltsov, S. V., Kurmaev, E. Z.

“…The results of full study of X-ray photoelectron spectra (XPS) of spin-liquid candidate CuAl 2 O 4 including the measurements of high-energy resolved core…”
Get full text

Appearance of Ferromagnetism in Co-Doped CeO2 Diluted Magnetic Semiconductors Prepared by Solid-State Reaction by Bouaine, A, Green, R. J, Colis, S, Bazylewski, P, Chang, G. S, Moewes, A, Kurmaev, E. Z, Dinia, A

“…We report on the magnetic and electronic properties of Co-doped CeO2 oxides prepared by a solid-state reaction. The as-prepared samples exhibit pure…”
Get full text

Study of the Structural Characteristics of 3d Metals Cr, Mn, Fe, Co, Ni, and Cu Implanted in ZnO and TiO2Experiment and Theory by Leedahl, B, Zatsepin, D. A, Boukhvalov, D. W, Kurmaev, E. Z, Green, R. J, Zhidkov, I. S, Kim, S. S, Cui, L, Gavrilov, N. V, Cholakh, S. O, Moewes, A

“…Herein we systematically study a range of dopants (Cr, Fe, Ni, Cu, and an MnCo alloy) in ZnO and TiO2 using several X-ray spectroscopic techniques. We identify…”
Get full text

Electronic Structure of Aluminum Oxide with Oxygen Vacancies by Korotin, M. A., Kurmaev, E. Z.

“…Results of numerical calculations of the electronic structure of nonstoichiometric aluminum oxide with a concentration of oxygen vacancies of 6% have been…”
Get full text

First-Principles Calculations of the Electronic Structure of Imperfect Crystals in the Coherent Potential Approximation by Korotin, M. A., Kurmaev, E. Z.

“…The results of electronic structure calculations of imperfect crystals—nonstoichiometric metal oxides (TiO 2 –  x , TiO 1 –  x , Al 2 O 3 –  x ) are reviewed…”
Get full text

Analysis of Electron Spectra of Carbon Allotropes (Diamond, Graphite, Fullerene) by Density Functional Theory Calculations Using the Model Molecules by Endo, K, Koizumi, S, Otsuka, T, Ida, T, Morohashi, T, Onoe, J, Nakao, A, Kurmaev, E. Z, Moewes, A, Chong, D. P

“…X-ray photoelectron, emission, and Auger electron spectra of diamond, graphite, and fullerene have been analyzed by deMon density-functional theory (DFT)…”
Get full text

XPS and DFT study of Sn incorporation into ZnO and TiO2 host matrices by pulsed ion implantation by Zatsepin, D. A., Boukhvalov, D. W., Kurmaev, E. Z., Zhidkov, I. S., Kim, S. S., Cui, L., Gavrilov, N. V., Cholakh, S. O.

“…Bulk and thin‐film ZnO and TiO2 samples were doped with Sn by pulsed ion implantation and studied by means of X‐ray photoelectron core‐level and valence‐band…”
Get full text

Electronic structure and photoluminescence properties of Zn-ion implanted silica glass before and after thermal annealing by Zatsepin, D.A., Zatsepin, A.F., Boukhvalov, D.W., Kurmaev, E.Z., Pchelkina, Z.V., Gavrilov, N.V.

“…The results of XPS core-level and valence band measurements, photoluminescence spectra of a-SiO2 implanted by Zn-ions (E=30keV, D=1·1017cm−2) and Density…”
Get full text

Interaction of graphene oxide with barium titanate in composite: XPS and DFT studies by Boukhvalov, D.W., Zhidkov, I.S., Kukharenko, A.I., Cholakh, S.O., Menéndez, J.L., Fernández-García, L., Kurmaev, E.Z.

“…By using X-ray photoelectron spectroscopy and density functional theory based calculations, it has been found that graphene in BaTiO3/graphene oxide composites…”
Get full text