Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Spintronics: Faster data processing through ultrashort electric pulses

02.07.2020

Physicists at Martin Luther University Halle-Wittenberg (MLU) and Lanzhou University in China developed a simple concept that could improve significantly magnetic-based data processing. Using ultrashort electric pulses in the terahertz range, data can be written, read and erased very quickly. This would make data processing faster, more compact and energy efficient. The researchers confirmed their theory by running complex simulations and the results were published in the journal “NPG Asia Materials”.

Magnetic data storage is indispensable for storing securely the huge amount of data generated every day, for instance through social networks. Once stored, the information can still be retrieved after many years.


Charge-based data storage used for example in mobile phones is much more short-lived when there is no energy supply. Traditional magnetic hard drives and components have disadvantages of their own, due to the moving mechanical parts and the need for magnetic fields which makes them more power consuming and relatively slow when reading and writing data.

“We were after a fast and energy-efficient alternative,” explains Professor Jamal Berakdar from the Institute of Physics at MLU. He and his colleagues from Lanzhou University came up with a simple idea. By using ultrashort pulses in the terahertz range, information could be written in magnetic nano-vortices and retrieved within picoseconds.

Theoretically, this renders possible billions of read and write operations per second without the need for magnetic fields. “With the appropriately shaped pulses the data can be processed very quickly at low energy cost,” says Berakdar. The new concept is based on existing terahertz and magnetism technologies. “It exploits advances in electric pulse generation and nanomagnetism.”

So far, the method has been tested in computer simulations. “In recent years there have been fantastic advances in generating and controlling electrical pulses,” says Berakdar. Therefore, it makes sense to explore new ways to apply these pulses to data storage.

The concept presented by the researchers offers a simple tool for controlling magnetic nano-vortices and can therefore be directly utilised for new storage technologies.

Wissenschaftliche Ansprechpartner:

Professor Jamal Berakdar
Institute for Physics / Nonequilibrium Many-Body Systems
phone: +49 345 55-28530
email: jamal.berakdar@physik.uni-halle.de

Originalpublikation:

Yu, Dongxing et al. Nondestructive ultrafast steering of a magnetic vortex by terahertz pulses. NPG Asia Materials (2020). https://doi.org/10.1038/s41427-020-0217-8

Ronja Münch | idw - Informationsdienst Wissenschaft
Further information:
https://pressemitteilungen.pr.uni-halle.de/index.php?modus=pmanzeige&pm_id=3289

More articles from Information Technology:

nachricht Novel approach improves graphene-based supercapacitors
03.08.2020 | University of Technology Sydney

nachricht Germany-wide rainfall measurements by utilizing the mobile network
03.08.2020 | Karlsruher Institut für Technologie (KIT)

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: New Strategy Against Osteoporosis

An international research team has found a new approach that may be able to reduce bone loss in osteoporosis and maintain bone health.

Osteoporosis is the most common age-related bone disease which affects hundreds of millions of individuals worldwide. It is estimated that one in three women...

Im Focus: AI & single-cell genomics

New software predicts cell fate

Traditional single-cell sequencing methods help to reveal insights about cellular differences and functions - but they do this with static snapshots only...

Im Focus: TU Graz Researchers synthesize nanoparticles tailored for special applications

“Core-shell” clusters pave the way for new efficient nanomaterials that make catalysts, magnetic and laser sensors or measuring devices for detecting electromagnetic radiation more efficient.

Whether in innovative high-tech materials, more powerful computer chips, pharmaceuticals or in the field of renewable energies, nanoparticles – smallest...

Im Focus: Tailored light inspired by nature

An international research team with Prof. Cornelia Denz from the Institute of Applied Physics at the University of Münster develop for the first time light fields using caustics that do not change during propagation. With the new method, the physicists cleverly exploit light structures that can be seen in rainbows or when light is transmitted through drinking glasses.

Modern applications as high resolution microsopy or micro- or nanoscale material processing require customized laser beams that do not change during...

Im Focus: NYUAD astrophysicist investigates the possibility of life below the surface of Mars

  • A rover expected to explore below the surface of Mars in 2022 has the potential to provide more insights
  • The findings published in Scientific Reports, Springer Nature suggests the presence of traces of water on Mars, raising the question of the possibility of a life-supporting environment

Although no life has been detected on the Martian surface, a new study from astrophysicist and research scientist at the Center for Space Science at NYU Abu...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“Conference on Laser Polishing – LaP 2020”: The final touches for surfaces

23.07.2020 | Event News

Conference radar for cybersecurity

21.07.2020 | Event News

Contact Tracing Apps against COVID-19: German National Academy Leopoldina hosts international virtual panel discussion

07.07.2020 | Event News

 
Latest News

Manifestation of quantum distance in flat band materials

05.08.2020 | Physics and Astronomy

Discovery shows promise for treating Huntington's Disease

05.08.2020 | Health and Medicine

Rock debris protects glaciers from climate change more than previously known

05.08.2020 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>