نتایج جستجو برای: ray spectroscopy

تعداد نتایج: 441673  

Journal: :Bulletin of the Chemical Society of Japan 1974

Journal: :International Astronomical Union Colloquium 1984

Journal: :Physical review research 2022

Here, we demonstrate an experimental proof of concept for nanofocused x-ray photon correlation spectroscopy, a technique sensitive to nanoscale fluctuations present in broad range systems. The experiment, performed at the NanoMAX beamline MAX IV, uses novel event-based detector capture nanoparticle structural dynamics with microsecond resolution. By varying nanobeam size from σ=88 nm σ=2.5μm, q...

Journal: :international journal of nano dimension 0
m. enhessari department of chemistry, naragh branch, islamic azad university, naragh, iran. a. parviz department of chemistry, naragh branch, islamic azad university, naragh, iran. k. ozaee young researchers club, naragh branch, islamic azad university, naragh, iran. h. habibi abyaneh department of chemistry, payame noor university, delijan, iran.

nowadays various methods are presented for synthesis of barium strontium titanate (bst) nanopowders with different morphology and properties. each of these (bst)s has got individual characterization that makes it suitable for a special application. every method has a special quality, causes it to have preference over the other methods. low processing temperature is a desired point which most of...

Journal: :journal of nanostructures 2012
a. bahari m. roodbari shahmiri m. derahkshi m. jamali

polyvinylpyrrolidone  /  nickel  oxide  (pvp/nio)  dielectrics  were fabricated  with  sol-gel  method  using  0.2  g  of  pvp  at  different working  temperatures  of  80,  150  and  200  ºc.  structural  properties and surface morphology of the hybrid films were investigated by x-ray  diffraction  (xrd)  and  scanning  electron microscope  (sem) respectively. energy dispersive x-ray spectrosc...

Journal: :Physical review letters 2006
B R Maddox A Lazicki C S Yoo V Iota M Chen A K McMahan M Y Hu P Chow R T Scalettar W E Pickett

We present resonant inelastic x-ray scattering and x-ray emission spectroscopy results on Gd metal to 113 GPa which suggest Kondo-like aspects in the delocalization of 4f electrons. Analysis of the resonant inelastic x-ray scattering data reveals a prolonged and continuous delocalization with volume throughout the entire pressure range, so that the volume-collapse transition at 59 GPa is only p...

2008
T. K. Sham

This paper reviews the research in nanomaterials conducted in our laboratory in the last decade using conventional and synchrotron radiation techniques. While preparative and conventional characterisation techniques are described, emphasis is placed on the analysis of nanomaterials using synchrotron radiation. Materials of primary interests are metal nanoparticles and semiconductor nanowires an...

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