Abstract: Field-effect transistors include at least two thin layers of a semiconductor material and of an electrically conductive gate material that are rolled up together. These two layers are arranged separated from one another by one or multiple barrier layers and this rolled-up multi-layer structure is integratable as field-effect transistors in circuits and/or in microfluid systems as sensors for the detection of fluids.

Abstract: The invention relates to the field of materials science and relates to a component, which can be used, for example, for microcomponents, microsensors and microactuators. The object of the present invention is to disclose a component in which a clearly greater relative length change occurs. The object is attained through a component of a ferromagnetic shape memory material, produced by a method in which at least one sacrificial layer is applied onto a single-crystalline or biaxially textured substrate, onto which sacrificial layer an epitaxial or textured layer of a ferromagnetic shape memory material with a layer thickness of ?50 ?m is applied, subsequently the sacrificial layer is removed at least partially, and during or after the layer application a structuring at least of the ferromagnetic shape memory material is realized such that an aspect ratio is achieved in which at least one length is greater by at least a factor of 3 than the thickness of the layer or the shortest dimension of the component.

Abstract: A transducer has natural unidirectionality for surface acoustic waves. An interdigital electrode structure is arranged on a piezoelectric crystal substrate and is constructed with interdigital transducers including collecting electrodes and fingers. At least two of the fingers form a transducer cell, which includes at least one excitation center for exciting an electrical potential wave and at least one reflection center for reflecting electrical potential waves. The fingers are oriented perpendicularly to a direction R parallel to a 1- or 3-fold rotational axis of the substrate crystal and the derivative dv/d?=0 applies to R, wherein v is the phase velocity of the surface wave and ? is an angular deviation of the perpendicular to the finger direction from the direction R.

Abstract: A nickel-based semi-finished product, for making a high-temperature superconductor, embodied in the form of a strip or flat wire is produced and used as a base for physical-chemical coatings provided with a high-quality intense microstructural orientation. The semi-finished product has an improved granular structure provided with a stable cube texture. A fusion or powder metallurgy process including mechanical alloys makes a semi-finished product including a technically pure Ni or Ni alloy containing an Ag additive in a specified microalloy range. The product is shaped as a strip or flat wire by hot- and cold forming processes with a thickness reduction >50% The product is softened by annealing at 500 to 850° C. and is subsequently quenched. Afterwards, the product is exposed to the 80% cold shaping. A recrystallization annealing treatment is carried out to obtain an entire cubic texture.

Abstract: A magnetic levitation device includes at least two superconductor molded bodies with stored magnetic field configurations above a magnetic guide track. The at least two superconductor molded bodies have at least one of a stored magnetic field configuration with different vertical spacing from the guide track and a stored magnetic field configuration with different horizontal position with respect to the guide track. The at least two superconductor molded bodies are mechanically held in a position deviating from their stored position above the guide track and connected to one another. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A method for producing printed magnetic functional elements for resistance sensors and printed magnetic functional elements. The invention refers to the field of electronics and relates to a method for producing resistance sensors, such as can be used, for example, in magnetic data storage for read sensors or in the automobile industry. The disclosure includes a simple and cost-effective production method and to obtain such printed magnetic functional elements with properties that can be adjusted as desire, in which a magnetic material is deposited onto a substrate as a film, is removed from the substrate and divided into several components and these components are applied on a substrate by means of printing technologies. Aspects are also directed to a printed magnetic functional element for resistance sensors of several components of a film, wherein at least 5% of the components of the functional element have a magnetoimpedance effect.

Abstract: The invention relates to the fields of materials sciences and medicine and relates to an agent, which can be used, for example, as a contrast medium for the localization of cancer cells. The object of the present invention is to disclose an agent which sensitively and selectively recognizes the site and the type of the molecules or cells to be examined. The object is attained through an agent composed at least of bio-shuttle molecules to which endohedral fullerenes are coupled by way of peptide-based molecules, wherein the endohedral fullerenes are hydrophobic and correspond to the formula A3-xMxZ@C2n in which x=0 to 3 and n?34, A means rare earths and/or transuranic elements, M means metals, Z means non-metals and C means carbon. The object is further attained through a method in which hydrophobic endohedral fullerenes are coupled with bio-shuttle molecules by way of an irreversible Diels-Alder reaction with an inverse electron demand (DARinv).

Abstract: Magnetic medium for storing information, includes at least two materials A and B which are connected with one another, material A being a hard magnetic material, wherein material B is a material which exhibits metamagnetic behavior in a magnetic field, the metamagnetic behavior of the material being such that, even after passing repeatedly through an external magnetic field from 0 to 10 tesla at least at a magnetic field strength below 3 tesla, an increase in the magnetization occurs as a function of the magnetic field, the increase being superproportional and having a positive curvature.

Abstract: A magnetic levitation device includes at least two superconductor molded bodies with stored magnetic field configurations above a magnetic guide track. The at least two superconductor molded bodies have at least one of a stored magnetic field configuration with different vertical spacing from the guide track and a stored magnetic field configuration with different horizontal position with respect to the guide track. The at least two superconductor molded bodies are mechanically held in a position deviating from their stored position above the guide track and connected to one another. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: High-strength, beryllium-free moulded bodies made from zirconium alloys which may be plastically deformed comprise a material essentially corresponding to the following formula in composition: Zra(E1)b(E2)c(E3)d(E4)e, where E1=one or several of Nb, Ta, Mo, Cr, W, Ti, V, Hf and Y, E2=one or several of Cu, Au, Ag, Pd and Pt, E3=one or several of Ni, Co, Fe, Zn and Mn, E4=one or several of AI, Ga, Si, P, C, B, Sn, Pb and Sb, a=100?(b+c+d+e), b=5 to 15, c=5 to 15, d=0 to 15 and e=5 to 15 (a, b, c, d, e in atom %). The moulded body essentially comprises a homogeneous, microstructural structure which is a glass-like or nano-crystalline matrix with a ductile, dendritic, cubic body-centered phase embedded therein.

Abstract: Disclosed is a method for improving the plastic ductility of high-strength molded bodies from bulk metallic glasses from Zr, Ti and Hf base alloys and molded bodies so produced. An object is to find ways to substantially increase the plasticity and toughness of bulk metallic glasses produced on the basis of early transition metals (Zr, Ti, Hf) which is comparatively low as compared to their very high strength, thereby further increasing their potential applicability as materials for airplane structures. Hydrogen in defined ranges of concentration is introduced into the molded bodies in a concentration below the brittle hydride formation concentration. The molded bodies produced comprise hydrogen in a homogenous distribution in the amorphous short-range order structure and/or in the form of hydrogen-induced local enrichment of ductile alloy components and/or in the form of hydrogen-induced precipitations of ductile nanocrystalline phases while excluding brittle hydrides.

Abstract: A method for producing metallic strips having a high-grade cube texture based on nickel, copper, aluminum, silver or alloys of these metals including austenitic iron-nickel alloys makes it possible to obtain, during a subsequent annealing process and with lower total degrees of forming, a recrystallization cube layer of a quality equal to that of one obtained using customary roll forming and produces a better quality cube texture with comparable total degrees of forming. To this end, a forming method is provided during which the materials are formed by cold drawing before their recrystallization annealing thereby rendering them high-grade. The tools used for this include: a) non-driven roll devices with an axially parallel flat pair of rolls or turk's head arrangements with two pairs of rolls or; b) fixed drawing jaws that are slanted toward one another. The strips produced according to the invention can be used, for example, as a coating support for producing strip-shaped high-temperature superconductors.

Abstract: A magnet assembly for the suspension and guidance of suspended vehicles and transport systems creates an intrinsically stable, contactless magnetic suspension and guidance system composed of an assembly of magnetic elements and a superconductor assembly for suspended vehicles and transport systems. At least one part of the magnetic element assembly is physically connected to the superconductor assembly. In addition, the magnetic elements assembly and the superconductor assembly are magnetically intercoupled to maintain a stable distance between at least two magnetic elements by the utilization of a magnetic field that is frozen in the superconductor. The magnetic assembly can be used in particular in those vehicles and transport systems that are configured to be displaced along a magnetic rail without making contact with the latter, thus enabling a displacement devoid of friction and abrasion.

Abstract: The invention is used in the field of materials engineering and relates to a method for defining reference magnetizations which could be used, for example, in magnetic sensor technology components. The object of the present invention is to disclose a method for defining reference magnetizations in layer systems, whereby the reference directions can be selected as desired with regard to number and spatial direction. The object is attained through a method for defining reference magnetizations in layer systems in which at least one layer system is produced by geometrically structuring a hard-magnetic and/or soft-magnetic layer and by applying the hard-magnetic and/or soft magnetic layer to at least one antiferromagnetic layer before, during or after a single-stage or multi-stage thermal treatment, whereby the temperature is increased at least to a temperature greater than the coupling temperature and the layer system is cooled afterwards.

Abstract: An acoustic surface wave component for which metallic strip structures of copper are applied on a piezoelectric material wherein the metallic strip structures have a polycrystalline and/or monocrystalline structure and/or are present in an amorphous state and consist of a basic copper material to which 0 atom percent to a maximum of 10 atom percent of one or more other metallic elements, an alloy and/or a compound are mixed, and that the strip structures are coated with or surround by one or more diffusion barrier layers.