The spin of charge carriers can serve as an information medium with faster components having much shorter switching times. Spin electronics or spintronics represents information by the orientation of the electron spin. To build a spin transistor it is necessary to inject spin-polarized electrons into classical semiconductors. Conventional methods for creating spin-polarized electrons involve polarization of spin created by ferromagnetic materials. </p> <p><strong>Technology</strong><br> This technology enables the injection of spin-polarized electrons into semiconductors at room temperature. This permits the production of spin-polarized materials that offer a highly efficient transition of the spin-polarized electrons. For ferromagnetic semiconductors such as Europium (II) sulfide (EuS) a high spin polarization exists at temperatures above room temperature if the ferromagnetic semiconductor interacts with additional free charge carriers. This spin-polarized ferromagnetic semiconductor is able to inject spin-polarization into a traditional (non-magnetic) semiconductor like GaAs or Si. The spin-polarized material consists therefore of multiple semiconducting and ferromagnetic semiconducting layers. Since the spin-polarized material works at room temperature extreme cooling is not required.</p>
firstname.lastname@example.org | TechnologieAllianz e.V.
New Lithium Salts of Pentafluorophenylamide Anions as Electrolytes in Lithium Ionic Batteries
18.04.2017 | TechnologieAllianz e.V.
Gratings on glass surfaces
28.03.2017 | TechnologieAllianz e.V.
Russian researchers together with their French colleagues discovered that a genuine feature of superconductors -- quantum Abrikosov vortices of supercurrent -- can also exist in an ordinary nonsuperconducting metal put into contact with a superconductor. The observation of these vortices provides direct evidence of induced quantum coherence. The pioneering experimental observation was supported by a first-ever numerical model that describes the induced vortices in finer detail.
These fundamental results, published in the journal Nature Communications, enable a better understanding and description of the processes occurring at the...
In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...
Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
13.06.2018 | Event News
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25.06.2018 | Physics and Astronomy
25.06.2018 | Earth Sciences
25.06.2018 | Power and Electrical Engineering