Results 1 to 10 of about 167,718 (203)

Extended X-ray absorption fine structure of bimetallic nanoparticles [PDF]

Beilstein Journal of Nanotechnology, 2011
Electronic and magnetic properties strongly depend on the structure of the material, especially on the crystal symmetry and chemical environment. In nanoparticles, the break of symmetry at the surface may yield different physical properties with respect ...
Carolin Antoniak
doaj   +4 more sources

Approach to electrochemical modulating differential extended X-ray absorption fine structure [PDF]

Journal of Synchrotron Radiation, 2022
The differential XAFS technique holds promise for detecting surface changes, which benefits many chemical applications. Phase-sensitive detection (PSD) analysis based on modulated excitation spectroscopy experiments is expected to obtain a high-quality ...
Wenjie Xu, Guikai Zhang, Hongwei Shou, Jia Zhou, Shuangming Chen, Shengqi Chu, Jing Zhang, Li Song   +7 more
doaj   +2 more sources

A polycrystalline diamond micro-detector for X-ray absorption fine-structure measurements [PDF]

Journal of Synchrotron Radiation, 2022
The microminiaturization of detectors used to record the intensity of X-ray beams is very favorable for combined X-ray experimental techniques. In this paper, chemical-vapor-deposited (CVD) polycrystalline diamond film was used to fabricate a micro ...
Lei Yao, Yunpeng Liu, Bingjie Wang, Lixiong Qian, Xueqing Xing, Guang Mo, Zhongjun Chen, Zhonghua Wu   +7 more
doaj   +2 more sources

Neural Network Approach for Characterizing Structural Transformations by X-Ray Absorption Fine Structure Spectroscopy.

Physical Review Letters, 2018
The knowledge of the coordination environment around various atomic species in many functional materials provides a key for explaining their properties and working mechanisms.
J. Timoshenko, A. Anspoks, A. Cintins, A. Kuzmin, J. Purāns, A. Frenkel   +5 more
semanticscholar   +3 more sources

X-ray Absorption Fine Structure

Oleoscience, 2012
H. Tanida, M. Harada, T. Takiue, H. Nagatani   +3 more
semanticscholar   +3 more sources

X-ray-absorption fine structure in embedded atoms [PDF]

Physical Review B, 1994
Oscillatory structure is found in the atomic background absorption in x-ray-absorption fine structure (XAFS). This atomic-XAFS or AXAFS arises from scattering within an embedded atom, and is analogous to the Ramsauer-Townsend effect. Calculations and measurements confirm the existence of AXAFS and show that it can dominate contributions such as multi ...
Rehr, J. J., Booth, C. H., Bridges, F., Zabinsky, S. I.   +3 more
openaire   +3 more sources

Database of ab initio L-edge X-ray absorption near edge structure

Scientific Data, 2021
Measurement(s) near-edge X-ray absorption fine structure spectroscopy • L-edge XANES Technology Type(s) X-ray absorption spectroscopy Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare ...
Yiming Chen, Chi Chen, Chen Zheng, Shyam Dwaraknath, Matthew K. Horton, Jordi Cabana, John Rehr, John Vinson, Alan Dozier, Joshua J. Kas, Kristin A. Persson, Shyue Ping Ong   +11 more
doaj   +1 more source

Understanding atomic x-ray absorption fine structure in x-ray absorption spectra [PDF]

Journal of Physics: Condensed Matter, 1998
The origin and important parameters determining the intensity of atomic x-ray absorption fine structure (AXAFS) are described both in chemical and physical terms. A full mathematical derivation is presented and new criteria are given for removal of the background to extract the total (EXAFS and AXAFS) from the experimental absorption cross-section. The
Koningsberger, D.C., Ramaker, D.E., Mojet, B.L., O'Grady, W.E.   +3 more
openaire   +2 more sources

Anomalous Behavior in the Atomic Structure of Nb₃Sn under High Pressure

Crystals, 2021
In the present study, the local atomic structure of a Nb3Sn superconductor sample has been probed by X-ray absorption fine structure (XAFS) as a function of hydrostatic pressure (from ambient up to 26 GPa) using a diamond anvil cell set-up.
Irene Schiesaro, Simone Anzellini, Rita Loria, Raffaella Torchio, Tiziana Spina, René Flükiger, Tetsuo Irifune, Enrico Silva, Carlo Meneghini   +8 more
doaj   +1 more source

X-ray-induced synthesis of gold nanoparticles and in situ XAFS measurements

Fushe yanjiu yu fushe gongyi xuebao, 2021
X-ray irradiation offers a promising avenue to expedite the green synthesis of nanoparticles with high efficiency, simplicity, and environmental friendliness.
FAN Jinsong, CHEN Jing, LI Jiang, ZHU Ying, WANG Lihua   +4 more
doaj   +1 more source