scholarly journals Core-hole screening response in two-dimensional cuprates: A high-resolution x-ray photoemission study

2002 ◽  
Vol 66 (2) ◽  
Author(s):  
A. Koitzsch ◽  
J. Fink ◽  
M. S. Golden ◽  
K. Karlsson ◽  
O. Jepsen ◽  
...  
Keyword(s):  
High Resolution ◽  
Two Dimensional ◽  
Core Hole ◽  
X Ray ◽  
Photoemission Study

Soft X-ray emission and high-resolution photoemission study of quasi-two-dimensional superconductor NaxHfNCl

2003 ◽  
Vol 392-396 ◽  
pp. 127-129 ◽  
Author(s):  
T. Takeuchi ◽  
S. Tsuda ◽  
T. Yokoya ◽  
T. Tsukamoto ◽  
S. Shin ◽  
...  
Keyword(s):  
High Resolution ◽  
Two Dimensional ◽  
X Ray ◽  
Photoemission Study

scholarly journals Cu-O network-dependent core-hole screening in low-dimensional cuprate systems: A high-resolution x-ray photoemission study

1998 ◽  
Vol 57 (1) ◽  
pp. 138-141 ◽  
Author(s):  
T. Böske ◽  
K. Maiti ◽  
O. Knauff ◽  
K. Ruck ◽  
M. S. Golden ◽  
...  
Keyword(s):  
High Resolution ◽  
Core Hole ◽  
X Ray ◽  
Low Dimensional ◽  
Photoemission Study

Tubulin structure at intermediate resolution

1995 ◽  
Vol 53 ◽  
pp. 852-853
Author(s):  
K. H. Downing ◽  
S. G. Wolf ◽  
E. Nogales
Keyword(s):  
High Resolution ◽  
Structural Data ◽  
Therapeutic Drug ◽  
Zinc Ions ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Negative Stain ◽  
Functional Mechanisms ◽  
Tubulin Structure

Microtubules are involved in a host of critical cell activities, many of which involve transport of organelles through the cell. Different sets of microtubules appear to form during the cell cycle for different functions. Knowledge of the structure of tubulin will be necessary in order to understand the various functional mechanisms of microtubule assemble, disassembly, and interaction with other molecules, but tubulin has so far resisted crystallization for x-ray diffraction studies. Fortuitously, in the presence of zinc ions, tubulin also forms two-dimensional, crystalline sheets that are ideally suited for study by electron microscopy. We have refined procedures for forming the sheets and preparing them for EM, and have been able to obtain high-resolution structural data that sheds light on the formation and stabilization of microtubules, and even the interaction with a therapeutic drug.Tubulin sheets had been extensively studied in negative stain, demonstrating that the same protofilament structure was formed in the sheets and microtubules. For high resolution studies, we have found that the sheets embedded in either glucose or tannin diffract to around 3 Å.

High Resolution Synchrotron X-Ray Diffraction Tomography Of Large-Grained Samples

1996 ◽  
Vol 437 ◽  
Author(s):  
D.P. Piotrowski ◽  
S.R. Stock ◽  
A. Guvenilir ◽  
J.D. Haase ◽  
Z.U. Rek
Keyword(s):  
Spatial Distribution ◽  
High Resolution ◽  
Three Dimensional ◽  
Polycrystalline Materials ◽  
Diffraction Tomography ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Image Storage ◽  
X Ray ◽  
Dimensional Distribution

AbstractIn order to understand the macroscopic response of polycrystalline structural materials to loading, it is frequently essential to know the spatial distribution of strain as well as the variation of micro-texture on the scale of 100 μm. The methods must be nondestructive, however, if the three-dimensional evolution of strain is to be studied. This paper describes an approach to high resolution synchrotron x-ray diffraction tomography of polycrystalline materials. Results from model samples of randomly-packed, millimeter-sized pieces of Si wafers and of similarly sized single-crystal Al blocks have been obtained which indicate that polychromatic beams collimated to 30 μm diameter can be used to determine the depth of diffracting volume elements within ± 70 μm. The variation in the two-dimensional distribution of diffracted intensity with changing sample to detector separation is recorded on image storage plates and used to infer the depth of diffracting volume elements.

Study of N-bridged diiron phthalocyanine relevant to methane oxidation: Insight into oxidation and spin states from high resolution 1s core hole X-ray spectroscopy

2012 ◽  
Vol 113-114 ◽  
pp. 43-51 ◽  
Author(s):  
Evgeny V. Kudrik ◽  
Olga Safonova ◽  
Pieter Glatzel ◽  
Janine C. Swarbrick ◽  
Leonardo X. Alvarez ◽  
...  
Keyword(s):  
High Resolution ◽  
Methane Oxidation ◽  
Spin States ◽  
Core Hole ◽  
X Ray ◽  
Insight Into

High-resolution x-ray-photoemission study of metastable Fe silicide core-electron states

1995 ◽  
Vol 51 (24) ◽  
pp. 17667-17674 ◽  
Author(s):  
S. Hong ◽  
U. Kafader ◽  
P. Wetzel ◽  
G. Gewinner ◽  
C. Pirri
Keyword(s):  
High Resolution ◽  
Core Electron ◽  
Electron States ◽  
X Ray ◽  
Photoemission Study
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