Materials Literature
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Four tetranuclear 3d-4f complexes with the 4f centers bridged solely by end-on azide bridges were reported. The [CuTb]2 compound displays single-molecule-magnet behavior with hysteresis loops observed at up to 2.4 K.
Quasielastic neutron scattering of ${\mathrm{H}}_{2}$ and ${\mathrm{D}}_{2}$ in the same nanoporous carbon at 10--40 K demonstrates extreme quantum sieving, with ${\mathrm{D}}_{2}$ diffusing up to 76 times faster. ${\mathrm{D}}_{2}$ also shows liquidlike diffusion while ${\mathrm{H}}_{2}$ exhibits Chudley-Elliott jump…
Dielectric spectra and magnetization hysteresis loops were used to investigate the grain size effect with temperature on the electrical and magnetic response of co-precipitation derived spinel (Ni0.5Zn0.5)Fe2O4 (NZFO) ceramics. Remarkable dielectric relaxation phenomena of non-Debye type have been observed in each NZF…
The combination of self-assembly (bottom up) and nano-imprint lithography (top down) is an efficient and effective way to record information at the nanoscale by writing. The use of an electron beam for writing is quite a promising strategy; however, the 'paper' on which to save the information is not yet fully realize…
This study investigated the photoluminescent properties of Tb(3+)-Yb(3+)-, Ce(3+)-Tb(3+)-Yb(3+)-, and Eu(2+)-Yb(3+)-doped KSrPO4. The samples were prepared by a solid-state reaction with various doping concentrations. Emission at near-infrared range was focused on the application of luminescent solar concentrator for…
Understanding the tribochemical interaction of water molecules in humid environment with carbonaceous film surfaces, especially hydrophilic surface, is fundamental for applications in tribology and solid lubrication. This paper highlights some experimental evidence to elucidate the structural and environmental depende…
OBJECTIVES: Ti, which is biocompatible and resistant to corrosion, is widely used for dental implants, particularly in patients allergic to other materials. However, numerous studies have reported on Ti allergy and the in vitro corrosion of Ti. This study investigated the conditions that promote the elution of Ti ions…
Abstract A series of luminescent polynuclear copper(I) phenyl thiolate clusters with functional groups in the organic ligand shell has been synthesized and characterized by single‐crystal X‐ray diffraction. Cluster compounds 1 – 5 with Me 2 N groups bound to the phenyl thiolate are described and feature different nucl…
Co${}_{2}$FeSi, a Heusler alloy with the highest magnetic moment per unit cell and the highest Curie temperature, has largely been described theoretically as a half-metal. This conclusion, however, disagrees with point contact Andreev reflection (PCAR) spectroscopy measurements, which give much lower values of spin po…
Single-layer graphene was transferred onto (1 – x )[Pb(Mg 1/3 Nb 2/3 )O 3 ]– x [PbTiO 3 ] 0.3 (PMN-PT) substrate to investigate the transport properties of graphene-based field effect transistors (FETs) by ferroelectric gating. The graphene/PMN-PT FET exhibited p-type characteristics with a large memory window and an…
In this article a new acceleration sensor using flexoelectric barium strontium titanate cantilever was designed, fabricated, and tested for vibration monitoring. The flexoelectric sensors were configured as a trapezoidal unimorph with a barium strontium titanate layer bonded onto a steel substrate. Seismic mass was at…
Detecting and understanding the complex signatures of species for attribution of highly enriched uranium, HEU, is challenging even though these compounds have been intensively studied for 65 years. Attempts to obtain, for example, chemical speciation signatures on uranium oxides are frustrated by the presence of extre…
Self‐healing materials for structural applications offer considerable practical benefits because they would allow to overcome the difficulties connected to damage diagnosis and repair. In this article, a process active at very low temperature for the repair of damaged structural material is shown. The self‐repair func…
Effective prediction of flashover voltage (FOV) of insulators is an important approach to the prevention of pollution flashover accidents. In order to predict the FOV of insulators and prevent pollution flashover accidents, first, a large number of artificial pollution tests, which simulate the impact of contamination…
OBJECTIVE: In search of molecular imaging modalities for specific detection of inflammatory atherosclerotic plaques, we explored the potential of targeting scavenger receptor-AI (SR-AI), which is highly expressed by lesional macrophages and linked to effective internalization machinery. APPROACH AND RESULTS: Ultrasmal…
We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is computationally cheap because transformation optics circumvents the need to solve Maxwell's equations at…
Electrical properties of detonation diamond nanoparticles (NDs) with individual diameters of ∼5 nm are important for many applications. Although diamond is an insulator, it is known that hydrogen-terminated bulk diamond becomes conductive when exposed to water. We show that heating ND in hydrogen gas at 600–900 °C res…
Perovskite-type materials have been investigated extensively in the attempt to discover new electrolyte materials for solid oxide fuel cells (SOFC) operating at low temperatures. These materials include LaAlO3-based perovskite, which, when adequately doped, presents high ionic conductivity. However, despite the high c…
Duplex stainless steels are susceptible to the formation of sigma phase at high temperature which could potentially be responsible for catastrophic service failure of components. Thermal treatments were applied to duplex stainless steels in order to promote the precipitation of different fractions of sigma phase into…
Die Inversion von Pickering-Emulsionen nutzt eine neuartige Methode für die In-situ-Abtrennung und -Rückgewinnung von submikrometergroßen festen Katalysatoren (siehe Schema; o=Öl, w=Wasser). Die Katalysatoren können 36 Mal ohne merklichen Aktivitätsverlust wiederverwendet werden. Die Methode unterscheidet sich von den…