Materials Literature
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Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation A. Duk, M. Schmidbauer, J. Schwarzkopf; Anisotropic one-dimensional domain pattern in NaNbO3 epit…
We investigate the effect of LaTiO3 insertion at the interface between LaAlO3 and TiO2 terminated {100} SrTiO3 for a series of LaAlO3 and LaTiO3 thicknesses. A clear increase of the carrier density was observed while the Hall mobility was largely unchanged. In structures with LaAlO3 thickness ∼3 unit cells, close to t…
This paper revisits the problem of the linearized Boltzmann transport equation (BTE), or, equivalently, of the momentum relaxation time, momentum relaxation time (MRT), for the calculation of low field mobility, which in previous works has been almost universally solved in approximated forms. We propose an energy driv…
Superelasticity is very common in shape memory alloys but is rather difficult to realize in ferroelectric ceramics and had never appeared in normal ferroelectric single crystals. Here we show that guided by a proposed incremental 90° domain switching criterion, large and electric-field-tunable superelastic strains up…
The effect of self-irradiation damage on the local structure of δ-Pu, PuAl2, PuGa3, and other Pu intermetallics has been determined for samples stored at room temperature using the extended x-ray absorption fine-structure (EXAFS) technique. These measurements indicate that the intermetallic samples damage at a similar…
Electrical pulse measurements were used to study the polarization relaxation behavior of ultrathin epitaxial BaTiO3 ferroelectric capacitors and to assess the effect of interface engineering on the relaxation process. The relaxation behavior was described as a transition from a single- to a poly-domain state driven by…
The influence of a molten liquid polymer layer on the crystallization of the beneath semicrystalline polymer has been seldom considered. In the study, the nucleation and growth of spherulites for the beneath polylactide (PLA) layer in poly(ethylene oxide)/polylactide (PEO/PLA) double-layer films during isothermal crys…
Effect of partial Mn substitution for Fe in Fe3Si on the structural, magnetic, transport, and magnetotransport properties has been studied. Mn substitution is found to induce a re-entrant antiferromagnetic phase at low temperatures. The increase in the antiferromagnetic exchange causes a gradual decrease in the Curie…
The atomic pair distribution function (PDF) as obtained from X-ray or neutron total scattering experiments has proved to be powerful in obtaining valuable structural information for many complex functional materials, be they amorphous or crystalline. In the case of measurements made with X-rays and for samples contain…
A general approach for selective, differential functionalization of the interior and exterior surfaces of mesoporous Si is reported. The method employs two immiscible liquids, one inert and the other chemically reactive with the porous Si nanostructure. First, a porous Si sample is prepared by electrochemical etch and…
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Magnetic PLGA nanoparticles are a significant advancement in the quest to translate MRI-based cell tracking to the clinic. The benefits of these types of particles are that they encapsulate large amounts of iron oxide nanocrystals within an FDA-approved polymer matrix, combining the best aspects of inert micron-sized…
Freie Entfaltung: Bornitrid-Nanobänder (BNNRs) mit einigen Mikrometern Länge und Breiten im zweistelligen Nanometerbereich sind direkt und ohne Nachbehandlung über die Synthese entsprechender Nanoröhren zugänglich. Untersuchungen der Röntgenabsorptions-Feinstruktur bescheinigen den BNNRs eine hohe chemische Reinheit u…
Effects of high pressure exceeding 10 GPa on spin-driven ferroelectricity were investigated for a multiferroic, triangular-lattice antiferromagnet (TLA), CuCrO${}_{2}$. For this purpose, we developed a system which enables us to measure ferroelectric polarization under a pressure of 10 GPa by using a diamond anvil cel…
The Interstitialcy theory assumes that major structural defects defining the properties of glass are similar to dumbbell interstitials in crystalline metals. Within the framework of this approach, we showed that at a constant defect concentration, the temperature coefficient of the shear modulus of glass equals to tha…
We determine transition probabilities in two exactly solvable multistate Landau-Zener (LZ) models and discuss applications of our results to the theory of dynamic passage through a phase transition in the dissipationless quantum mechanical regime. In particular, we show that the statistics of particles in a new phase…
Electronic structure of newly synthesized single crystals of calcium iron arsenide doped with sodium with ${T}_{\mathrm{c}}$ ranging from 33 to 14 K has been determined by angle-resolved photoemission spectroscopy (ARPES). The measured band dispersion is in general agreement with theoretical calculations, nonetheless…
In this work, we investigate the effect of illumination parameters which is light polarization, wavelength, and beam focalization, on the large-scale patterning of the surface of azobenzene-containing polymer films by means of spontaneous surface structuring. This is a phenomenon due to the interference at the sample…
Third-generation photovolatics require demanding cost and power conversion efficiency standards, which may be achieved through efficient exciton multiplication. Therefore, generating more than one electron-hole pair from the absorption of a single photon has vast ramifications on solar power conversion technology. Unl…
We study the interactions of submicrometer diameter silica particles, surface functionalized with DMOAP (N,N-dimethyl-n-octadecyl-3-aminopropyl-trimethoxysilyl chloride), in the nematic liquid crystal 5CB (pentylcyanobiphenil). Using the methods of video-tracking dark-field microscopy, we have measured the pair-bindin…