Results 151 to 160 of about 2,029,405 (397)

Overview of Synchrotron Radiation

open access: yes, 2003
After Schott’s [3] unsuccessful attempt to explain atomic radiation with his electromagnetic theory no further progress was made for some 40 years mainly because of lack of interest. Only in the mid forties did the theory of electromagnetic radiation from free electrons become interesting again with the successful development of circular high-energy ...
openaire   +2 more sources

The Synchrotron Radiation Facility at Frascati

open access: yesReview of Scientific Instruments, 1992
In this paper we give a brief description of the Synchrotron Radiation Facility at Frascati. Particular emphasis is given in describing the most significant instrument developments during the last few years.
CIMINO R, BURATTINI E, MOBILIO, Settimio
openaire   +3 more sources

Structural Control of Photoconductivity in a Flexible Titanium‐Organic Framework

open access: yesAdvanced Materials, EarlyView.
The concept of flexibility is extended to titanium frameworks and use it to gain control over charge transport. MUV‐35 is a flexible doubly interpenetrated framework that can shrink spontaneously its volume by ≈40% to afford a photoconductive, porous state that is thermodynamically favored by non‐covalent interactions. Abstract The soft nature of Metal‐
Clara Chinchilla‐Garzón   +6 more
wiley   +1 more source

Fast cooling synchrotron radiation in a decaying magnetic field and $\gamma$-ray burst emission mechanism

open access: yes, 2014
Synchrotron radiation of relativistic electrons is an important radiation mechanism in many astrophysical sources. In the sources where the synchrotron cooling time scale $t_c$ is shorter than the dynamical time scale $t_{dyn}$, electrons are cooled down
Uhm, Z. Lucas, Zhang, Bing
core   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

open access: yesAdvanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner   +4 more
wiley   +1 more source

Iodine‐Doped Sodium Vanadate Cathode for Improved Zn Ion Diffusion Kinetics

open access: yesAdvanced Materials, EarlyView.
An iodine‐doping strategy is developed to modify the Na2V6O16·3H2O cathode for aqueous zinc‐ion batteries, effectively reducing the electrostatic interaction between zinc ions and the host structure. This modification enables faster diffusion and higher storage capacity of zinc ions. Abstract The electrostatic interaction between zinc ions and the host
Xinyue Hu   +13 more
wiley   +1 more source

Self-cleaning and surface chemical reactions during hafnium dioxide atomic layer deposition on indium arsenide

open access: yesNature Communications, 2018
Atomic layer deposition of high-quality thin oxide layers is crucial for many modern semiconductor electronic devices. Here, the authors explore the surface chemistry during the initial deposition and observe a previously unknown two-step process, with ...
Rainer Timm   +11 more
doaj   +1 more source

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

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

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