Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Magnons control magnons: Transistors for the next generation of computing

21.08.2014

A disturbance in the local magnetic order of a solid body can propagate across a material just like a wave. This wave is named spin wave and its quanta are known as magnons.

Physicists from the University of Kaiserslautern propose the usage of magnons to carry and process information instead of electrons as it is done in electronics.


The flow of magnons from the transistor’s Source to Drain (blue bubbles) is controlled by the magnons injected into the Gate (red bubbles)

This technology opens access to a new generation of computers in which data are processed without motion of any real particles like electrons.

This leads to a decrease of the accompanying heat loss and, consequently, to lower energy consumption. Moreover, unique magnon properties allow for the utilization of alternative computing concepts resulting in a drastic increase of speed and performance of modern processors.

In a study recently published in the prestigious scientific journal Nature Communications, the Kaiserslautern scientists have realized the transistor – the main component of any modern computer – solely based on Magnons.

The transistor was proposed for the first time and a proof of concept device was demonstrated. The density of magnons in this three-terminal device could be decreased one thousand times while flowing from the transistor's Source to its Drain via the injection of magnons in the Gate.

The interaction between magnon flows was so efficient due to a strong natural nonlinearity of magnons which was enhanced using an artificial magnetic material – the magnonic crystal.

The demonstrated “magnon controls magnon” approach will be used in future for the realization of a single-chip magnetic processor in which Terabytes of data will be processed purely within the same magnonic system.

The research team consisted of Dr. Andrii Chumak, Dr. Alexander Serga and Prof. Dr. Burkard Hillebrands from the State Research Center Optics and Material Sciences (OPTIMAS) funded by the State of Rhineland-Palatinate. Further funding was obtained through the Deutsche Forschungsgemeinschaft (Grant no. SE 1771/1-2) and EU-FET (Grant InSpin 612759).

For details of the study see:
Andrii V. Chumak, Alexander A. Serga, Burkard Hillebrands: Magnon transistor for all-magnon data processing, Nature Communications 2014 doi 10.1038/ncomms5700 (http://www.nature.com/naturecommunications).

Contact: Prof. Dr. Burkard Hillebrands, Tel.: 0631/205-4228, E-Mail: hilleb@physik.uni-kl.de

Legend:The schematic of magnon transistor. The flow of magnons from the transistor’s Source to Drain (blue bubbles) is controlled by the magnons injected into the Gate (red bubbles). The decrease or even the full stop of the Source-to-Drain magnon flow was realized experimentally (Copyright: Chumak, Serga, Hillebrands).

Weitere Informationen:

http://www.uni-kl.de

Thomas Jung | Technische Universität Kaiserslautern

Further reports about: Drain Nature artificial bubbles decrease electrons experimentally natural

More articles from Physics and Astronomy:

nachricht New quantum liquid crystals may play role in future of computers
21.04.2017 | California Institute of Technology

nachricht Light rays from a supernova bent by the curvature of space-time around a galaxy
21.04.2017 | Stockholm University

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

Im Focus: Quantum-physical Model System

Computer-assisted methods aid Heidelberg physicists in reproducing experiment with ultracold atoms

Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...

Im Focus: Glacier bacteria’s contribution to carbon cycling

Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.

A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

New quantum liquid crystals may play role in future of computers

21.04.2017 | Physics and Astronomy

A promising target for kidney fibrosis

21.04.2017 | Health and Medicine

Light rays from a supernova bent by the curvature of space-time around a galaxy

21.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>