Materials Literature
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The reversal of the magnetization under the influence of a field pulse has been previously predicted to be an incoherent process with several competing phenomena such as domain wall relaxation, spin wave-mediated instability regions, and vortex-core mediated reversal dynamics. However, there has been no study on the d…
The rational design of high-performance and cheap nanomaterials for multiple sustainable energy storage applications is extremely urgent but remains challenging. Herein, a facile commercial melamine-sponge-directed multicomponent surface self-assembly strategy has been reported to synthesize N-doped carbon aerogels (N…
The mechanical and thermal properties of Y4Al2O9 were predicted using a combination of first-principles and chemical bond theory (CBT) calculations. Density functional theory (DFT) computations were performed for the structural, mechanical, and thermal properties, and the results were confirmed by chemical bond theory…
The efficiency of industrial methanol synthesis from syngas results from a complex scenario of surface chemical reactions in the presence of dynamical morphological changes of the catalyst material in response to the chemical and physical properties of the gas phase, which are believed to explain the superior performa…
Discovery of the new materials raised researchers’ hopes of solving the riddle of high-temperature superconductivity. But the unexpectedly diverse systems turned out to possess their own treasure trove of unusual physics that continues to challenge condensed-matter theorists.
In this work we present the concept and design of an ultrathin (\ensuremath{\lambda}/22) terahertz (THz) unidirectional carpet cloak based on the local phase compensation approach enabled by gradient metasurfaces. A triangular surface bump with center height of 4.1 mm (1.1\ensuremath{\lambda}) and tilt angle of 20\ifm…
At low emittance synchrotron sources it has become possible to perform structure determinations from the measurement of multiple microcrystals which were previously considered too small for diffraction experiments. Conventional mounting techniques do not fulfill the requirements of these new experiments. They signific…
Some materials exhibit ground states that are disordered, even in the zero-temperature limit. Researchers derive theoretical relations of thermodynamic and structural properties to describe these unexpected states.
Applicable surface enhanced Raman scattering (SERS) active substrates require high enhancement factor (EF), excellent spatial reproducibility, and low-cost fabrication method on a large area. Although several SERS substrates with high EF and relative standard deviation (RSD) of signal less than 5% were reported, relia…
During the past decades, numerous achievements concerning luminescent zinc oxide nanoparticles (ZnO NPs) have been reported due to their improved luminescence and good biocompatibility. The photoluminescence of ZnO NPs usually contains two parts, the exciton-related ultraviolet (UV) emission and the defect-related vis…
The economic and safety issues caused by ice accretion have become more and more serious. Except for traditional ways of anti‐icing, such as spraying agents, mechanical/thermal removal, etc., more economic approaches are urgently required. This work demonstrates the conceptual feasibility of using a self‐lubricated ph…
Since the first report of the enhanced permeability and retention (EPR) effect, the research in nanocarrier based antitumor drugs has been intense. The field has been devoted to treatment of cancer by exploiting EPR-based accumulation of nanocarriers in solid tumors, which for many years was considered to be a ubiquit…
Traditional thin-film energy-storage devices consist of stacked layers of active films on two-dimensional substrates and do not exploit the third dimension. Fully three-dimensional thin-film devices would allow energy storage in bulk materials with arbitrary form factors and with mechanical properties unique to bulk m…
Biodegradable metals have attracted considerable attentions in recent years. Besides the early launched biodegradable Mg and Fe metals, Zn, an essential element with osteogenic potential of human body, is regarded and studied as a new kind of potential biodegradable metal quite recently. Unfortunately, pure Zn is soft…
Is growth of materials understood such that one can predict the structure of any grown material based on the deposition conditions and the material used as substrate? . . . . . . .8.4 Assuming one can grow a material with pulsed laser deposition (PLD) in the desired structure required by density functional theory (DFT…
There are three fundamental duration dynamics of civil conflicts: Time until conflict onset, conflict duration, and time until conflict recurrence. Theoretical and empirical models of war usually focus on one or at most two aspects of these three important duration dynamics. We argue that duration forecasting of confl…
Trois composés de structure Bronze de Tungstène Quadratique ont été étudiés sous forme de couches minces élaborées par ablation laser. Il s'agit de Pb2KNb5O15 (PKN), GdK2Nb5O15 (GKN) et K3Li2Nb5O15 (KLN). Les deux premiers composés correspondent aux compositions extrêmes (x = 0 et x = 1) choisies à partir de la soluti…
This paper presents general model of reinforced-concrete elements deterioration by a statistical method including atmospherically and force condition. Paper includes algorithm of service life prediction of reinforced concrete elements of bridges.
In X-ray diffraction (and also, except for the complication of double diffraction, in electron diffraction) the intensities of reflections from certain planes with Laue indices hkl are zero. Such reflections are said to be forbidden or extinguished or, better, systematically absent since they arise from the centring o…
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