Structure of epitaxial (Fe,N) codoped rutile TiO2thin films by x-ray absorption

X-ray diffraction and extended X-ray absorption fine structure study of epitaxial mixed ternary bixbyite PrxY2−xO3 (x = 0–2) films on Si (111)

Electronic structure of CeCo2 thin films studied by X-ray absorption spectroscopy

We present an X-ray absorption near-edge structure (XANES) study at Ce L3-, and Co K-edges of CeCo2 thin films with the thickness varying from 30 to 140 nm. Ce L3-edge spectra exhibit the mixed valence nature and the tetravalent contribution increases with the thickness of CeCo2. The variation in the spectral intensity observed at Co K-edge threshold indicates that there is a change in 3d occup...

Metal induced crystallization of amorphous silicon thin films studied by x-ray absorption fine structure spectroscopy

The role of thin metallic layer (Chromium or Nickel) in the crystallization of a-Si film has been studied using X-ray absorption fine structure spectroscopy (XAFS). The films were grown at different substrate temperatures in two different geometrical structures : (a) a 200 nm metal layer (Cr or Ni) was deposited on fused silica (FS) followed by 400 nm of a-Si and (b) the 400 nm a-Si layer was d...

X-ray diffraction and extended x-ray absorption fine-structure characterization of nonspherical crystallographic grains in iron thin films

The characterization of iron thin films grown at different substrate temperatures has been performed by x-ray diffraction (XRD) and extended x-ray absorption fine structure (EXAFS). The film growing of iron at low temperatures provides an excellent system to test the results obtained from both techniques because the crystallographic grains present a variation of size and shape as a function of ...

Photon interference x-ray absorption fine structure

We report about a fine structure in x-ray absorption spectra, named photon interference x-ray absorption fine structure (pXAFS). pXAFS is due to the interference of x-rays inside the sample and extends across absorption edges. Using a platinum foil pXAFS was measured in a high precision absorption experiment. Excellent agreement with a theoretical pXAFS simulation is achieved in the energy rang...