Results 21 to 30 of about 357,376 (300)

A new satellite of manganese revealed by extended-range high-energy-resolution fluorescence detection

open access: yesJournal of Synchrotron Radiation, 2023
The discovery of a new physical process in manganese metal is reported. This process will also be present for all manganese-containing materials in condensed matter.
Nicholas T. T. Tran   +6 more
doaj   +1 more source

Synthesis and electrical properties of BaBiO3 and high resistivity BaTiO3–BaBiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2016
Ceramics of the composition BaBiO3 (BB) were sintered in oxygen to obtain a single phase with monoclinic I2/m symmetry as suggested by high-resolution X-ray diffraction.
Nitish Kumar   +2 more
doaj   +1 more source

PEROVSKITES AND OTHER FRAMEWORK STRUCTURE CRYSTALLINE MATERIALS (BOOK' FIRST PAGES AND PREFACE)

open access: yesMaterials and Devices, 2021
Perovskites are among the most famous materials due to their exceptional properties: they present nearly all existing types of interesting properties, in particular as ferroics or multiferroics, they may be insulators, (super)conductors, or ...
Saint-Grégoire P., Smirnov M.
doaj   +1 more source

Klein-Nishina Effects on Optically Thin Synchrotron and Synchrotron Self-Compton Spectrum [PDF]

open access: yes, 2009
We present analytic approximations to the optically thin synchrotron and synchrotron self-Compton (SSC) spectra when Klein-Nishina (KN) effects are important and pair production and external radiation fields can be neglected.
Ando   +25 more
core   +2 more sources

Gamma Ray Burst Prompt Emission Variability in Synchrotron and Synchrotron Self-Compton Lightcurves [PDF]

open access: yes, 2012
Gamma Ray Burst prompt emission is believed to originate from electrons accelerated in a highly relativistic outflow. "Internal shocks" due to collisions between shells ejected by the central engine is a leading candidate for electron acceleration. While
Resmi, L., Zhang, B.
core   +1 more source

High-resolution electron time-of-flight spectrometers for angle-resolved measurements at the SQS Instrument at the European XFEL

open access: yesJournal of Synchrotron Radiation, 2022
A set of electron time-of-flight spectrometers for high-resolution angle-resolved spectroscopy was developed for the Small Quantum Systems (SQS) instrument at the SASE3 soft X-ray branch of the European XFEL.
Alberto De Fanis   +26 more
doaj   +1 more source

A Detailed Study of the Radio--FIR Correlation in NGC6946 with Herschel-PACS/SPIRE from KINGFISH [PDF]

open access: yes, 2013
We derive the distribution of the synchrotron spectral index across NGC6946 and investigate the correlation between the radio continuum (synchrotron) and far-infrared (FIR) emission using the KINGFISH Herschel PACS and SPIRE data.
Aniano, G.   +24 more
core   +6 more sources

Imaging with Coherent X-rays: From the Early Synchrotron Tests to SYNAPSE

open access: yesJournal of Imaging, 2021
The high longitudinal and lateral coherence of synchrotron X-rays sources radically transformed radiography. Before them, the image contrast was almost only based on absorption.
Giorgio Margaritondo, Yeukuang Hwu
doaj   +1 more source

Features of calcium hexaaluminate formation in alumina-zirconia ceramics

open access: yesChimica Techno Acta, 2023
Alumina-zirconia composites containing calcium hexaaluminate in the amount from 0 to 15 wt.% were investigated. The materials were obtained by water dispersion, granulation, axial pressing, and free sintering. Density and open porosity were determined by
Nina Cherkasova   +6 more
doaj   +1 more source

In situ Viscometry of Primitive Lunar Magmas at High Pressure and High Temperature

open access: yesFrontiers in Earth Science, 2019
Understanding the dynamics of the magmatic evolution of the interior of the Moon requires accurate knowledge of the viscosity (η) of lunar magmas at high pressure (P) and high temperature (T) conditions. Although the viscosities of terrestrial magmas are
Nachiketa Rai   +5 more
doaj   +1 more source

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