Materials Literature
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The intrinsic ferroelectric phase transitions occurring in perovskite-structure epitaxial films of Pb${}_{0.5}$Sr${}_{0.5}$TiO${}_{3}$ are experimentally assessed and studied. The low-frequency dielectric response of thin-film heterostructure capacitors, polycrystalline films, and prototype ceramics is analyzed using…
V${}_{2}$O${}_{3}$ is an archetypal system for the study of correlation-induced, Mott-Hubbard metal-insulator transitions. Despite decades of extensive investigations, the accurate description of its electronic properties remains an open problem in the physics of strongly correlated materials, also because of the lack…
Abstract This study reports the manufacture of new fabric forms from the preparation of hybrid laminated multiaxial composites with enhanced thermo‐mechanical properties. Thermal and dynamic mechanical analysis of polymer matrix films and fabricated hybrid composites were used to determine the optimal material composi…
A general theory of lineshapes in nuclear quadrupole resonance (NQR), based on the stochastic Liouville equation, is presented. The description is valid for arbitrary motional conditions (particularly beyond the valid range of perturbation approaches) and interaction strengths. It can be applied to the computation of…
Large-area films of vertically-aligned semiconductor nanorods have the potential to be useful, active materials for optoelectronic devices. We demonstrate here a highly facile thermal annealing approach for reversibly assembling 28 nm long CdSe nanorods into vertically aligned arrays in solution. Using temperature to…
Demagnetized rare earth magnets (Nd-Fe-B) can be fully magnetized by scanning them in the intense static fields over 3 T of a HTS bulk magnet which was cooled to the temperature range lower than 77K with use of cryo-coolers and activated by the field of 5 T. We precisely examined the magnetic field distributions of ma…
Abstract Pulsed laser deposition (PLD) employing a pulsed Nd:YAG laser was used to grow thin films from a pre‐synthesized Cr 2 AlC MAX phase ablation target onto MgO(100), amorphous SiO 2 and stainless steel substrates. The depositions were carried out for substrate temperatures from room temperature to 650 °C. For on…
The photoemission cross-section of Shockley states of Cu(111) and Ag(111) surfaces is studied over a wide range of photon energies. The constant initial-state spectra are very different for the two surfaces and show rich structure that does not follow the generally accepted nearly free electron model for the final sta…
Structural and near-infrared (NIR) emission properties were investigated in the Tm(3+)-Dy(3+) codoped Ge-Ga-based amorphous chalcohalide films fabricated by pulsed laser deposition. The homogeneous films illustrated similar random network to the glass target according to the measurements of X-ray diffraction, X-ray ph…
Abstract Composition‐tunable ternary CdSe x S 1− x quantum dots (shortened form, CdSeS QDs) with different emission colors were prepared via a non‐injection, one‐pot approach in a green N‐oleoylmorpholine solvent for the first time, with air‐stable compounds cadmium oxide (CdO), selenium (Se) powder, and sulfur (S) po…
Synthesis and characterization of both binary Co(II)- (1), Ni(II)- (2) complexes with enrofloxacin drug (HL(1)) and ternary Co(II)- (3), Ni(II)- (4) complexes in presence of DL-alanine (H(2)L(2)) are reported using physico-chemical techniques. The antimicrobial activity of these complexes has been screened against two…
Two new C,N,N-type ligands (HL(2) and HL(3)), containing a C(phenyl), a N(pyridyl), and a N(imidazolyl) donor, and their cycloplatinated complexes, [Pt(L(2))Cl] (1), [Pt(L(3))Cl] (2), [Pt(L(2))(PPh(3))](+) (3) and [Pt(L(3))(PPh(3))](+) (4), have been successfully synthesized and characterized. Spectroscopic and (3)MLC…
We use x-ray photon correlation spectroscopy (XPCS) to probe the dynamics of colloidal particles in polycrystalline ice. During freezing, the dendritic ice morphology and rejection of particles from the ice created regions of high particle density, where some of the colloids were forced into contact and formed disorde…
Poly(3-chlorothiophene) has been prepared by anodic polymerization in boron trifluoride diethyl etherate with 0.1 M tetrabutylammonium tetrafluoroborate. The potential applied for the generation of the polymer has been found to affect considerably both physical (e.g. the thickness and roughness of the films, and the c…
Intersecting corners and checkerboards of negative refractive index materials (NRIM) represent highly singular electromagnetic systems that involve very highly enhanced local fields and the local density of modes. It is well known that plasmonic metallic systems can mimic the behavior of NRIM in the near-field limit a…
Characterization of noncovalent interactions between nanometer-sized structures, such as proteins, and solid surfaces is a subject of intense interest of late owing to the rapid development of numerous solid materials for medical and technological applications. Yet the rational design of these surfaces to promote the…
Alumina-supported mono- and bimetallic cobalt (Co) and palladium (Pd) monolithic catalysts were prepared and tested for methane catalytic combustion. The activity test showed that the catalyst containing 0.1 wt % Pd and 0.25 wt % Co was the most promising, with a high activity that did not decline with time on stream.…
Nanomagnets with biaxial magnetocrystalline aniso-tropy have four stable magnetization orientations that can encode four-state logic bits (00), (01), (11), and (10). Recently, a four-state nor gate derived from three such nanomagnets, interacting via dipole interaction, was proposed. Here, we devise a Bennett clocking…
Top-down fabrication is used to produce ZnO nanowires by remote plasma atomic layer deposition over a SiO2pillar and anisotropic dry etching. Nanowire field-effect transistors (FETs), with channel lengths in the range of 1.3-18.6 μm, are then fabricated using these 80 nm × 40 nm nanowires. Measured electrical results…
Abstract Dy 3+ doped lead fluoroborate (LFB) glasses (B 2 O 3 + PbO + PbF 2 ) have been prepared following conventional melt quenching technique by varying the concentration of Dy 2 O 3 in the order 0.01, 0.1, 1, 2, and 3 mol%. X‐ray powder diffraction (XRD), Fourier transform infrared (FTIR), optical absorption, fluo…