Materials Literature
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By using first-principles calculations, we have studied the atomic and electronic structures of FeSe monolayer and bilayer thin films on SrTiO${}_{3}$ (001) with SrO or TiO${}_{2}$ termination. We find that both FeSe monolayer and bilayer on either termination behave like a slightly doped semiconductor with a collinea…
We have investigated the magnetic and transport properties of nanoscaled Fe3O4 films obtained from Chemical Vapor Deposition (CVD) technique using [FeIIFe2III(OBut)8] and [Fe2III(OBut)6] precursors. Samples were deposited on different substrates (i.e., MgO (001), MgAl2O4 (001) and Al2O3 (0001)) with thicknesses varyin…
Abstract Calcium carbonate precipitation proceeds via a complex multistage scenario involving neutral ion clusters as precursors and amorphous phases as intermediates, which finally transform to crystals. Although the existence of stable clusters in solution prior to nucleation has been demonstrated, the molecular mec…
We measure spin transport in high mobility suspended graphene (μ ≈ 10(5)cm(2)/(V s)), obtaining a (spin) diffusion coefficient of 0.1 m(2)/s and giving a lower bound on the spin relaxation time (τ(s) ≈ 150 ps) and spin relaxation length (λ(s) = 4.7 μm) for intrinsic graphene. We develop a theoretical model considering…
Neutron diffraction is used to reveal the origin and control of the thermal expansion properties of the cubic intermetallic compounds Mn${}_{3}$Zn${}_{x}$N and Mn${}_{3}$[Zn-(Ag,Ge)]${}_{x}$N. We show that the introduction of Zn vacancies induces and stabilizes an antiferromagnetic phase with huge spin-lattice couplin…
Abstract Lead is commonly used in medical radiology departments as a shielding material. Lead‐based protective materials are also used by clinical personnel during X‐ray image‐guided interventional radiology (IVR) procedures. However, lead is extremely toxic and prolonged exposure to it can result in serious health co…
Magnetic nanoparticles exhibit a high potential to selectively treat cancer by hyperthermia provided that high heating capacity can be reached. In this work, we report an efficient synthesis of novel structures of magnetic iron oxide. The particles, obtained by applying a modified “polyol” protocol, present a particul…
Materials with percolating mesopores are attractive for applications such as catalysis, nanotemplating, and separations. Polymeric frameworks are particularly appealing because the chemical composition and the surface chemistry are readily tunable. We report on the preparation of robust nanoporous polymers with percol…
Superhydrophobic surfaces with photocatalytic self-cleaning properties are designed through coating a nanocomposite TiO(2) photocatalyst and hydrophobic polytetrafluoroethylene onto a structured substrate by applying a co-deposition technique. This coating realizes adequate photocatalytic activity for self-cleaning an…
Hydrogels are three-dimensional networked materials that are similar to soft biological tissues and have highly variable mechanical properties, making them increasingly important in a variety of biomedical and industrial applications. Herein we report the preparation of extremely high water content hydrogels (up to 99…
We present a systematic Raman study of unconventionally stacked double-layer graphene, and find that the spectrum strongly depends on the relative rotation angle between layers. Rotation-dependent trends in the position, width and intensity of graphene 2D and G peaks are experimentally established and accounted for th…
Pioneering research in 2004 by Geim and Novoselov (2010 Nobel Prize winners in Physics) of the University of Manchester led to the isolation of a monolayer graphene sheet. Graphene is a single-atom-thick sheet of sp(2) hybridized carbon atoms that are packed in a hexagonal honeycomb crystalline structure. Graphene is…
We report high performance p-type field-effect transistors based on single layered (thickness, ∼0.7 nm) WSe(2) as the active channel with chemically doped source/drain contacts and high-κ gate dielectrics. The top-gated monolayer transistors exhibit a high effective hole mobility of ∼250 cm(2)/(V s), perfect subthresh…
International audience
Aims: Streakline and its visualization and production techniques are one of important indices for fluid dynamics, civil engineering, material engineering, and so on. In chaotic or turbulent flow field where global mixing occurs, fluid trajectory exponentially expands in particular directions. Consequently, it is quite…
„Meine Mottos sind ,sei naiv‘ und ,sei kreativ‘. Meine liebste Art einen Urlaub zu verbringen, ist an einem Bergbach zu fischen …︁“ Dies und mehr von und über Noritaka Mizuno finden Sie auf Seite 10592.
In Chapter 1, the process of materials characterization was explored as an example of strategic and tactical thinking. The following ve chapters covered, in broad outlines, the physical principles, technical implementation, and operational modes of the most widely used techniques for nanoscale characterization. The …
“My mottos are ‘be naïve’ and ‘be creative’. My favorite way to spend a holiday is fishing in a mountain stream. …︁” This and more about Noritaka Mizuno can be found on page 10442.
This chapter is organized as follows. In Sec. 2 we present our general theoretical approach and numerical method. In Sec. 3, we describe the electron scattering through a quantum dot in a 2D system. The scattering for a quantum dot confined in a Q1D system is presented in Sec. 4. In Sections 5 and 6, we show our numer…
In this paper, we present a numerical procedure capable of analyzing dynamic hysteresis in axial-symmetric problems. The ferromagnetic hysteresis is described by Jiles-Atherton model. This model is integrated in finite element method (FEM) in order to resolve magneto-dynamic problems. The interface between the Jiles-A…