High-resolution X-ray emission and X-ray absorption spectroscopy

F De Groot - Chemical Reviews, 2001 - ACS Publications
In this review, high-resolution X-ray emission and X-ray absorption spectroscopy will be
discussed. The focus is on the 3d transition-metal systems. To understand high-resolution X …

Inelastic x-ray scattering by electronic excitations under high pressure

JP Rueff, A Shukla - Reviews of Modern Physics, 2010 - APS
Investigating electronic structure and excitations under extreme conditions gives access to a
rich variety of phenomena. High pressure typically induces behavior such as magnetic …

Diverse plant and animal genetic records from Holocene and Pleistocene sediments

E Willerslev, AJ Hansen, J Binladen, TB Brand… - Science, 2003 - science.org
Genetic analyses of permafrost and temperate sediments reveal that plant and animal DNA
may be preserved for long periods, even in the absence of obvious macrofossils. In Siberia …

Iron partitioning in Earth's mantle: Toward a deep lower mantle discontinuity

J Badro, G Fiquet, F Guyot, JP Rueff, VV Struzhkin… - Science, 2003 - science.org
We measured the spin state of iron in ferropericlase (Mg0. 83Fe0. 17) O at high pressure
and found a high-spin to low-spin transition occurring in the 60-to 70-gigapascal pressure …

Probing the 3d spin momentum with X-ray emission spectroscopy: The case of molecular-spin transitions

G Vankó, T Neisius, G Molnar, F Renz… - The Journal of …, 2006 - ACS Publications
We report X-ray emission spectra of FeIII, FeII, and CoII spin-crossover compounds in their
high-spin and low-spin forms. It is shown that all X-ray emission features are sensitive to the …

Electronic transitions in perovskite: Possible nonconvecting layers in the lower mantle

J Badro, JP Rueff, G Vanko, G Monaco, G Fiquet… - Science, 2004 - science.org
We measured the spin state of iron in magnesium silicate perovskite (Mg0. 9, Fe0. 1) SiO3 at
high pressure and found two electronic transitions occurring at 70 gigapascals and at 120 …

[HTML][HTML] An improved laboratory-based x-ray absorption fine structure and x-ray emission spectrometer for analytical applications in materials chemistry research

EP Jahrman, WM Holden, AS Ditter… - Review of Scientific …, 2019 - pubs.aip.org
X-ray absorption fine structure (XAFS) and x-ray emission spectroscopy (XES) are advanced
x-ray spectroscopies that impact a wide range of disciplines. However, unlike the majority of …

X-ray emission spectroscopy to study ligand valence orbitals in Mn coordination complexes

G Smolentsev, AV Soldatov, J Messinger… - Journal of the …, 2009 - ACS Publications
We discuss a spectroscopic method to determine the character of chemical bonding and for
the identification of metal ligands in coordination and bioinorganic chemistry. It is based on …

Importance of shear in the bcc-to-hcp transformation in iron

KJ Caspersen, A Lew, M Ortiz, EA Carter - Physical review letters, 2004 - APS
Iron shows a pressure-induced martensitic phase transformation from the ground state
ferromagnetic bcc phase to a nonmagnetic hcp phase at≈ 13 GP a. The exact …

Electronic spin state of iron in lower mantle perovskite

J Li, VV Struzhkin, H Mao, J Shu… - Proceedings of the …, 2004 - National Acad Sciences
The electronic spin state of iron in lower mantle perovskite is one of the fundamental
parameters that governs the physics and chemistry of the most voluminous and massive …