Results 41 to 50 of about 284,099 (288)

X-ray absorption spectroscopy of Mn doped ZnO thin films prepared by rf sputtering technique

open access: yesAIP Advances, 2015
A set of r.f. sputter deposited ZnO thin films prepared with different Mn doping concentrations have been characterised by Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Absorption Near Edge Spectroscopy (XANES) measurements at Zn, Mn and O K
Ashok Kumar Yadav   +5 more
doaj   +1 more source

Dopant site selectivity in BaCe0.85M0.15O3-δ by extended x-ray absorption fine structure [PDF]

open access: yes, 2005
Rare earth doped BaCeO3 has been widely investigated as a proton conducting material. Trivalent dopants are generally assumed to fully occupy the Ce4+-site, and thereby introduce oxygen vacancies into the perovskite structure. Recent studies indicate the
Brennan, S.   +3 more
core   +1 more source

Effect of Ru susbstitution on atomic displacements in the layered SmFe_{1-x}Ru_xAsO_{0.85}F_{0.15} superconductor

open access: yes, 2012
The effect of Ru substitution on the local structure of layered SmFe$_{1-x}$Ru$_x$AsO$_{0.85}$F$_{0.15}$ superconductor has been studied by As $K$- and Sm $L_3$ - edges x-ray-absorption spectroscopy.
Fratini, M.   +8 more
core   +1 more source

The effect of thermal vibrations on extended x-ray absorption fine structure. I [PDF]

open access: yes, 1984
The form of the Debye–Waller factor in EXAFS is discussed in detail, and an expression is obtained for this factor in a general three‐atom system of C_s symmetry.
Baldeschwieler, John D., Boland, John J.
core   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

The dissection of atomic clusters with local structure in Ga-Sn alloy melts

open access: yesAIP Advances, 2018
The statistic short-range order (SRO) structure parameters of the Ga-Sn alloy melt are obtained with the X-ray diffractometer. The local atomic and electronic structures around the absorption atoms of Ga and Sn elements are detected by X-ray absorption ...
Xiaolin Zhao   +5 more
doaj   +1 more source

Investigations of fine-paste ware production and exchange in maritime Southeast Asia by electron microscopy and synchrotron X-ray absorption [PDF]

open access: yesProcessing and Application of Ceramics, 2019
The combination of synchrotron X-ray absorption and electron microscopy provided information on the production And exchange of fine-paste ware (FPW), dated to around the 11th to 14th centuries in peninsular Thailand and maritime Southeast Asia. White FPW
Chitnarong Sirisathitkul   +3 more
doaj   +1 more source

Structural Studies of Aluminated form of Zeolites—EXAFS and XRD Experiment, STEM Micrography, and DFT Modelling

open access: yesMolecules, 2021
In this article, the results of computational structural studies on Al-containing zeolites, via periodic DFT + D modelling and FDM (Finite Difference Method) to solve the Schrödinger equation (FDMNES) for XAS simulations, corroborated by EXAFS (Extended ...
Gabriela Jajko   +6 more
doaj   +1 more source

Electronic Structure of CeFeAsO1-xFx (x=0, 0.11/x=0.12) compounds

open access: yes, 2010
We report an extensive study on the intrinsic bulk electronic structure of the high-temperature superconductor CeFeAsO0.89F0.11 and its parent compound CeFeAsO by soft and hard x-ray photoemission, x-ray absorption and soft-x-ray emission spectroscopies.
Bondino, F.   +16 more
core   +2 more sources

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

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