Traditional silicon chips in computers and other electronic devices control the flow of electrical current by modifying the positive or negative charge of different parts of each tiny circuit. However it is also possible to use of the mysterious magnetic properties of electrons - know as “spin” - to control the movement of currents. Many large companies have spent millions of dollars trying to solve some of the problems faced by this technology, but progress has remained slow. Discoveries made in Oxford solve several of the most difficult problems and open up this exciting new world of possibilities.
Central to the success of modern electronics is the transistor. A transistor is a switch that controls the flow of electrical current. A modern computer chip contains many millions of tiny transistors; each acting as a tiny switch where a small current is used to control the flow of a larger current.
A spin transistor uses the spin properties of the electrons within it, to control the flow of a current. The big advantage of this approach is that the spin (or magnetic state) of a transistor can be set and then will not change, so unlike a normal electrical circuit that requires a continuous supply of power, a spin transistor remains in the same magnetic state even when power is removed! Producing a spin transistor that can be included in a modern silicon chip is a significant challenge, but scientists at Oxford have developed a spin transistor that works up to 1,000 times better than previous designs making this a real possibility!
Kim Evans | alfa
Open, flexible assembly platform for optical systems
24.01.2017 | Fraunhofer-Institut für Produktionstechnologie IPT
A big nano boost for solar cells
18.01.2017 | Kyoto University and Osaka Gas effort doubles current efficiencies
A Swedish-German team of researchers has cleared up a key process for the artificial production of silk. With the help of the intense X-rays from DESY's...
For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
24.01.2017 | Physics and Astronomy
24.01.2017 | Life Sciences
24.01.2017 | Health and Medicine