Molecular structure of poly(3-alkyl-thiophenes) investigated by calorimetry and grazing incidence X-ray scattering

2012 ◽  
Vol 97 ◽  
pp. 109-118 ◽  
Author(s):  
Jose Abad ◽  
Nieves Espinosa ◽  
Pilar Ferrer ◽  
Rafael García-Valverde ◽  
Carmen Miguel ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Vibrational resonant inelastic X-ray scattering in liquid acetic acid: a ruler for molecular chain lengths

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Viktoriia Savchenko ◽  
Iulia Emilia Brumboiu ◽  
Victor Kimberg ◽  
Michael Odelius ◽  
Pavel Krasnov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Acetic Acid ◽  
Molecular Chain ◽  
X Ray ◽  
X Ray Scattering ◽  
Localized Excitations ◽  
Vibrational Excitations ◽  
Chain Lengths ◽  
X Ray Absorption ◽  
Ray Scattering

AbstractQuenching of vibrational excitations in resonant inelastic X-ray scattering (RIXS) spectra of liquid acetic acid is observed. At the oxygen core resonance associated with localized excitations at the O–H bond, the spectra lack the typical progression of vibrational excitations observed in RIXS spectra of comparable systems. We interpret this phenomenon as due to strong rehybridization of the unoccupied molecular orbitals as a result of hydrogen bonding, which however cannot be observed in x-ray absorption but only by means of RIXS. This allows us to address the molecular structure of the liquid, and to determine a lower limit for the average molecular chain length.

Strain Analysis in Thin La1−xCaxMnO3 Films by Grazing Incidence X-ray Scattering

1999 ◽  
Vol 602 ◽  
Author(s):  
M. Petit ◽  
L. J. Martinez-Miranda ◽  
M. Rajeswari ◽  
A. Biswas ◽  
D. J. Kang ◽  
...  
Keyword(s):  
Film Thickness ◽  
Lattice Mismatch ◽  
Compressive Strain ◽  
Strain Analysis ◽  
Grazing Incidence ◽  
Relaxation Processes ◽  
Near Surface ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

AbstractWe have performed depth profile analyses of the lattice parameters in epitaxial thin films of La1−xCaxMno3 (LCMO), where x = 0.33 or 0.3, to understand the evolution of strain relaxation processes in these materials. The analyses were done using Grazing Incidence X-ray Scattering (GIXS) on films of different thicnesses on two different substrates, (100) oriented LaAlO3 (LAO), with a lattice mismatch of ∼2% and (110) oriented NGO, with a lattice mismatch of less than 0.1%. Films grown on LAO can exhibit up to three in-plane strained lattice constants, corresponding to a slight orthorhombic distortion of the crystal, as well as near-surface and columnar lattice relaxation. As a function of film thickness, a crossover from a strained film to a mixture of strained and relaxed regions in the film occurs in the range of 700 Å. The structural evolution at this thickness coincides with a change in the resistivity curve near the metalinsulator transition. The in-plane compressive strain has a range of 0.2 – 1.5%, depending on the film thickness for filsm in the range of 400 - 1500 A.

A general model for estimating the ordering of mesoporous film by grazing incidence small angle X-ray scattering

2014 ◽  
Vol 115 (20) ◽  
pp. 204311 ◽  
Author(s):  
Nie Zhao ◽  
Chunming Yang ◽  
Qian Zhang ◽  
Xueming Lu ◽  
Yuzhu Wang ◽  
...  
Keyword(s):  
Small Angle ◽  
General Model ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Mesoporous Film ◽  
Ray Scattering

Grazing incidence small angle x-ray scattering from free-standing nanostructures

1999 ◽  
Vol 86 (12) ◽  
pp. 6763-6769 ◽  
Author(s):  
Markus Rauscher ◽  
Rogerio Paniago ◽  
Hartmut Metzger ◽  
Zoltan Kovats ◽  
Jan Domke ◽  
...  
Keyword(s):  
Small Angle ◽  
Grazing Incidence ◽  
Free Standing ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Thermal quenching sample chamber for grazing incidence small angle x-ray scattering studies of polymer films

2007 ◽  
Vol 78 (11) ◽  
pp. 113910 ◽  
Author(s):  
M. A. Singh ◽  
M. N. Groves ◽  
M. S. Müller ◽  
I. J. Stahlbrand ◽  
D.-M. Smilgies
Keyword(s):  
Polymer Films ◽  
Small Angle ◽  
Thermal Quenching ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Sample Chamber ◽  
Ray Scattering

scholarly journals A grazing incidence small-angle x-ray scattering analysis on capped Ge nanodots in layer structures

2010 ◽  
Vol 22 (47) ◽  
pp. 474003 ◽  
Author(s):  
Hiroshi Okuda ◽  
Masayuki Kato ◽  
Keiji Kuno ◽  
Shojiro Ochiai ◽  
Noritaka Usami ◽  
...  
Keyword(s):  
Small Angle ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Layer Structures ◽  
Ray Scattering
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