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 NASA's SDO sees partial eclipse in space
29.05.2017 | NASA/Goddard Space Flight Center

nachricht Strathclyde-led research develops world's highest gain high-power laser amplifier
29.05.2017 | University of Strathclyde

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: Strathclyde-led research develops world's highest gain high-power laser amplifier

The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.

The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

New insights into the ancestors of all complex life

29.05.2017 | Earth Sciences

New photocatalyst speeds up the conversion of carbon dioxide into chemical resources

29.05.2017 | Life Sciences

NASA's SDO sees partial eclipse in space

29.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>