Structural Study of Mixed Crystals of [Zn1−xRux(bpy)3][NaCr(ox)3] Probed by High-Resolution Absorption Spectroscopy and High-Pressure Experiments

2010 ◽  
Vol 49 (7) ◽  
pp. 3402-3408 ◽  
Author(s):  
Mia Milos ◽  
Tiphaine Penhouet ◽  
Prodipta Pal ◽  
Andreas Hauser
Keyword(s):  
High Pressure ◽  
High Resolution ◽  
Structural Study ◽  
Absorption Spectroscopy ◽  
Mixed Crystals

Nano-probe x-ray analysis and high-resolution imaging on planar defects in high-pressure synthesized infinite-layer superconductor

1994 ◽  
Vol 52 ◽  
pp. 728-729
Author(s):  
Y. Y. Wang ◽  
H. Zhang ◽  
V. P. Dravid ◽  
H. Zhang ◽  
L. D. Marks ◽  
...  
Keyword(s):  
High Pressure ◽  
High Resolution ◽  
Atomic Structure ◽  
Emission Spectra ◽  
High Resolution Electron Microscopy ◽  
Planar Defects ◽  
X Ray ◽  
Infinite Layer ◽  
Resolution Electron ◽  
Resolution Imaging

Azuma et al. observed planar defects in a high pressure synthesized infinitelayer compound (i.e. ACuO2 (A=cation)), which exhibits superconductivity at ~110 K. It was proposed that the defects are cation deficient and that the superconductivity in this material is related to the planar defects. In this report, we present quantitative analysis of the planar defects utilizing nanometer probe xray microanalysis, high resolution electron microscopy, and image simulation to determine the chemical composition and atomic structure of the planar defects. We propose an atomic structure model for the planar defects.Infinite-layer samples with the nominal chemical formula, (Sr1-xCax)yCuO2 (x=0.3; y=0.9,1.0,1.1), were prepared using solid state synthesized low pressure forms of (Sr1-xCax)CuO2 with additions of CuO or (Sr1-xCax)2CuO3, followed by a high pressure treatment.Quantitative x-ray microanalysis, with a 1 nm probe, was performed using a cold field emission gun TEM (Hitachi HF-2000) equipped with an Oxford Pentafet thin-window x-ray detector. The probe was positioned on the planar defects, which has a 0.74 nm width, and x-ray emission spectra from the defects were compared with those obtained from vicinity regions.

High Resolution Infrared Absorption Spectroscopy of C60 Molecules and Clusters in Parahydrogen Solids

1999 ◽  
Author(s):  
Simon Tam ◽  
Michelle E. DeRose ◽  
Mario E. Fajardo ◽  
Norihito Sogoshi ◽  
Yoshiyasu Kato
Keyword(s):  
High Resolution ◽  
Absorption Spectroscopy ◽  
Infrared Absorption ◽  
Infrared Absorption Spectroscopy

Halogens molecular modifications with high pressure: the case of iodine

2021 ◽  
Author(s):  
Jingming Shi ◽  
Emiliano Fonda ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Toru Shinmei ◽  
...  
Keyword(s):  
High Pressure ◽  
Absorption Spectroscopy ◽  
Diatomic Molecules ◽  
Giant Planets ◽  
Atomistic Modeling ◽  
X Ray ◽  
X Ray Absorption

Metallization and dissociation are key transformations in diatomic molecules at high densities particularly significant for modeling giant planets. Using X-ray absorption spectroscopy and atomistic modeling, we demonstrate that in halogens,...

High pressure structural study of quasicrystalline AlMn

1988 ◽  
Vol 99 (1-2) ◽  
pp. 403-406 ◽  
Author(s):  
E. Johnson ◽  
J. Staun Olsen ◽  
J.V. Wood ◽  
L. Gerward
Keyword(s):  
High Pressure ◽  
Structural Study

High-resolution peptide separations using nano-LC at ultra-high pressure

2013 ◽  
Vol 36 (7) ◽  
pp. 1192-1199 ◽  
Author(s):  
Lucie Nováková ◽  
Axel Vaast ◽  
Catherine Stassen ◽  
Ken Broeckhoven ◽  
Mauro De Pra ◽  
...  
Keyword(s):  
High Pressure ◽  
High Resolution ◽  
Ultra High Pressure ◽  
Peptide Separations
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