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相关论文: Chemical Bonding in Epitaxial ZrB2 Studied by X-ra…

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The variation in local atomic structure and chemical bonding of ZrHx (x=0.15, 0.30, 1.16) magnetron sputtered thin films are investigated by Zr K-edge (1s) X-ray absorption near-edge structure and extended X-ray absorption fine structure…

材料科学 · 物理学 2017-11-28 Martin Magnuson , Fredrik Eriksson , Lars Hultman , Hans Högberg

The electronic structure and chemical bonding in reactively magnetron sputtered ZrHx (x=0.15, 0.30, 1.16) thin films with oxygen content as low as 0.2 at% are investigated by 4d valence band, shallow 4p core-level and 3d core-level X-ray…

材料科学 · 物理学 2017-11-07 Martin Magnuson , Susann Schmidt , Lars Hultman , Hans Högberg

Thin films of zirconium-rich perovskites Pb1-3x/2 Lax Zr0.65 Ti0.35O3 (PLZT; x=0.095) were studied using X-ray absorption near-edge structure (XANES) spectroscopy. Is shown, that slow crystallization of the system is accompanied by partial…

材料科学 · 物理学 2007-05-23 Mira Mandeljc , Marija Kosec , S. P. Gabuda , S. G. Kozlova , S. B. Erenburg , N. V. Bausk

We report on the crystal structure and ferroelectric properties of epitaxial ZrO$_2$ films ranging from 7 to 42 nm thickness grown on La$_{0.67}$Sr$_{0.33}$MnO$_3$-buffered (110)-oriented SrTiO$_3$ substrate. By employing X-ray diffraction,…

The local structure and chemical bonding in two-phase amorphous Cr$_{1-x}$C$_{x}$ nanocomposite thin films are investigated by Cr $K$-edge ($1s$) X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure…

材料科学 · 物理学 2016-11-28 Weine Olovsson , Björn Alling , Martin Magnuson

Doped HfO2 and HfO2-ZrO2 compounds are gaining significant interest thanks to their ferroelectric properties in ultrathin films. Here, we show that ZrO2 could be a playground for doping and strain engineering to increase the thickness in…

材料科学 · 物理学 2022-09-01 Ali El Boutaybi , Thomas Maroutian , Ludovic Largeau , Sylvia Matzen , Philippe Lecoeur

BaZn2As2 is expected for a good p-type semiconductor and has two crystalline phases of an orthorhombic alpha phase and a higher-symmetry tetragonal beta phase. Here, we report high-quality epitaxial films of the tetragonal beta-BaZn2As2…

材料科学 · 物理学 2013-12-03 Zewen Xiao , Fan-Yong Ran , Hidenori Hiramatsu , Satoru Matsuishi , Hideo Hosono , Toshio Kamiya

The chemical bonding within the transition-metal carbide materials MAX phase Ti3AlC2 and MXene Ti3C2Tx is investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopies. MAX…

材料科学 · 物理学 2020-10-02 Martin Magnuson , Lars-Åke Näslund

ZrO2:10%SiO2 thinfilms have been deposited on fused silica substrate by reactive electron beam co-evaporation technique at different oxygen partial pressure. The structural analysis shows tetragonal phase with residual tensile stress in the…

材料科学 · 物理学 2020-09-22 S. Jena , R. B. Tokas , S. Thakur , N. K. Sahoo

Transition metal dichalcogenides (TMDCs) belong to technologically important compounds. We have explored the structural, elastic, bonding, optoelectronic and some thermo-physical properties of ZrX2 (X = S, Se, Te) TMDCs in details via…

材料科学 · 物理学 2021-02-25 Md. Mahamudujjaman , Md. Asif Afzal , R. S. Islam , S. H. Naqib

The electronic structure, chemical bonding and interface component in ZrN-AlN nanocomposites formed by phase separation during thin film deposition of metastable Zr1-xAlxN (x=0.0, 0.12, 0.26, 0.40) is investigated by resonant inelastic…

材料科学 · 物理学 2020-03-19 Martin Magnuson , Weine Olovsson , Naureen Ghafoor , Magnus Odén , Lars Hultman

We report x-ray resonant magnetic scattering (XRMS) and resonant inelastic x-ray scattering (RIXS) studies of epitaxially-strained $\mathrm{Sr_2IrO_4}$ thin films. The films were grown on $\mathrm{SrTiO_3}$ and…

Structural and superconducting properties of magnesium diboride thin films grown by pulsed laser deposition on zirconium diboride buffer layers were studied. We demonstrate that the ZrB2 layer is compatible with the MgB2 two step deposition…

Epitaxial NbO2 (110) films, 20 nm thick, were grown by pulsed laser deposition on Al2O3 (0001) substrates. The Ar/O2 total pressure during growth was varied to demonstrate the gradual transformation between NbO2 and Nb2O5 phases, which was…

材料科学 · 物理学 2015-07-29 Toyanath Joshi , Tess R. Senty , Pavel Borisov , Alan D. Bristow , David Lederman

Boron carbide thin films of different thicknesses deposited by ion beam sputtering were studied. The deposited films were characterized by grazing incidence hard x-ray reflectivity (GIXR), resonant soft x-ray reflectivity (RSXR), x-ray…

材料科学 · 物理学 2017-08-25 P. N. Rao , R. K. Gupta , K. Saravanan , A. Bose , S. C. Joshi , T. Ganguli , S. K. Rai

The binary ruthenate, RuO$_2$, has been the subject of intense interest due to its itinerant antiferromagnetism and strain-induced superconductivity. The strain mechanism and its effect on the microscopic electronic states leading to the…

We have studied zirconia films on a Rh(111) substrate with thicknesses in the range of 2-10 monolayers (ML) using scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Zirconia was deposited using a UHV-compatible…

材料科学 · 物理学 2018-12-05 Peter Lackner , Zhiyu Zou , Sabrina Mayr , Joong-Il Jake Choi , Ulrike Diebold , Michael Schmid

Zirconia and hafnia based thin films have attracted tremendous attention in the last decade due to their unexpected ferroelectric behavior at the nanoscale, which facilitates the downscaling of ferroelectric devices. The present work…

High-grade MgB2(0001) films were grown on Mg(0001) by means of ultra-high-vacuum molecular beam epitaxy. Low energy electron diffraction and x-ray diffraction data indicate that thick films are formed by epitaxially oriented grains with…

The near edge structure (XANES) in K-edge X-ray absorption spectroscopy (XAS) is a widely used tool for studying electronic and local structure in materials. The precise interpretation of these spectra with the help of calculations is hence…

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