Results 41 to 50 of about 11,563 (263)

Slow crossover in YbXCu4 intermediate valence compounds [PDF]

open access: yes, 2001
We compare the results of measurements of the magnetic susceptibility Chi(T), the linear coefficient of specific heat Gamma(T)=C(T)/T and 4f occupation number nf(T) for the intermediate valence compounds YbXCu4 (X = Ag, Cd, In, Mg, Tl, Zn) to the ...
A. C. Hewson   +37 more
core   +1 more source

Copper accumulation in the sequestrum of medication-related osteonecrosis of the jaw

open access: yesBone Reports, 2015
Bisphosphonates (BPs) have been widely, efficiently, and safely used for the treatment of various bone-related diseases such as osteoporosis. However, concerns about jaw osteonecrosis associated with oral treatment (medication-related osteonecrosis of ...
Tomoko Sugiyama   +6 more
doaj   +1 more source

Local structure around Ga in ultrafine GaN/ZnO coaxial nanorod heterostructures [PDF]

open access: yes
The structure of tubular GaN coaxially grown on ZnO nanorods with thickness of 6-12 nm was investigated using x-ray absorption fine structure (XAFS) at the Ga K edge.
An, SJ, Han, SW, Yi, GC, Yoo, HJ, Yoo, J
core   +1 more source

In situ/operando plug-flow fixed-bed cell for synchrotron PXRD and XAFS investigations at high temperature, pressure, controlled gas atmosphere and ultra-fast heating

open access: yesJournal of Synchrotron Radiation
A plug-flow fixed-bed cell for synchrotron powder X-ray diffraction (PXRD) and X-ray absorption fine structure (XAFS) idoneous for the study of heterogeneous catalysts at high temperature, pressure and under gas flow is designed, constructed and ...
Benjamin Bischoff   +10 more
doaj   +1 more source

Synchrotron X-ray Absorption Spectroscopy Study of Local Structure in Al-Doped BiFeO3 Powders

open access: yesNanoscale Research Letters, 2019
The Al-doped BiFeO3, i.e., BFA x O powder samples with x = 0, 0.025, 0.05, and 0.1, were prepared via the hydrothermal route. The effects of Al substitution on the structural, electrical, and optical properties of BFA x O samples were investigated. It is
Turghunjan Gholam   +5 more
doaj   +1 more source

A universal relationship between magnetization and local structure changes below the ferromagnetic transition in La_{1-x}Ca_xMnO_3; evidence for magnetic dimers

open access: yes, 2005
We present extensive X-ray Absorption Fine Structure (XAFS) measurements on La_{1-x}Ca_xMnO_3 as a function of B-field (to 11T) and Ca concentration, x (21-45%). These results reveal local structure changes (associated with polaron formation) that depend
Bridges, F.   +5 more
core   +1 more source

X-ray absorption fine structure (XAFS)-based radionuclide research at the KIT Light Source

open access: yesSafety of Nuclear Waste Disposal, 2023
Abstract. In the past two decades, X-ray absorption spectroscopy (XAS) and related synchrotron-based radionuclide speciation techniques have become indispensable, supporting open issues in fundamental radiochemistry and nuclear waste disposal alike. Physicochemical structure information – encoded in the element-specific X-ray absorption fine structure (
openaire   +4 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Dispersion and stability mechanism of Pt nanoparticles on transition-metal oxides

open access: yesScientific Reports, 2022
The heterogeneous catalysts of Pt/transition-metal oxides are typically synthesized through calcination at 500 °C, and Pt nanoparticles are uniformly and highly dispersed when hydrogen peroxide (H2O2) is applied before calcination.
Eun-Suk Jeong   +2 more
doaj   +1 more source

Thermally activated decomposition of (Ga,Mn)As thin layer at medium temperature post growth annealing [PDF]

open access: yes, 2016
The redistribution of Mn atoms in Ga1-xMnxAs layer during medium-temperature annealing, 250-450 oC, by Mn K-edge X-ray absorption fine structure (XAFS) recorded at ALBA facility, was studied.
Chernyshova, M.   +7 more
core   +1 more source

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