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12 papers · 2 filters
Structural and physical properties of perovskites
S. Kolesnik, B. Dabrowski, O. Chmaissem
We combine the results of magnetic and transport measurements with neutron diffraction data to construct the structural and magnetic phase diagram of the entire family of SrMn$_{1-…
A comparative study of CO adsorption on flat, stepped and kinked Au surfaces using density functional theory
F. Mehmood, A. Kara, T. S. Rahman +1
Our ab initio calculations of CO adsorption energies on low miller index (111), (100), stepped (211), and kinked (532) gold surfaces show a strong dependence on local coordination…
A Short Working Distance Multiple Crystal X-ray Spectrometer
B. Dickinson, G. T. Seidler, Z. W. Webb +5
For x-ray spot sizes of a few tens of microns or smaller, a mm-sized flat analyzer crystal placed ~ 1 cm from the sample will exhibit high energy resolution while subtending a coll…
Interacting Dipoles in Type-I Clathrates: Why Glass-like though Crystal?
Tsuneyoshi Nakayama, Eiji Kaneshita
Almost identical thermal properties of type-I clathrate compounds to those of glasses follow naturally from the consideration that off-centered guest ions possess electric dipole m…
Observation of a continuous phase transition in a shape-memory alloy
J. C. Lashley, S. M. Shapiro, B. L. Winn +10
Elastic neutron-scattering, inelastic x-ray scattering, specific-heat, and pressure-dependent electrical transport measurements have been made on single crystals of AuZn and Au_{0.…
Pressure-induced electronic mixing and enhancement of ferromagnetic ordering in EuX (X=Te, Se, S, O) magnetic semiconductors
Narcizo M. Souza-Neto, Daniel Haskel, Yuan-Chieh Tseng +1
The pressure- and anion-dependent electronic structure of EuX (X=Te, Se, S, O) monochalcogenides is probed with element- and orbital-specific X-ray absorption spectroscopy in a dia…