Martin Luther University Halle-Wittenberg

Logo des SFB 762

Contact

Koordinator/Coordinator:

Michael Strauch

phone: +49 (0) 345/55 25449
fax: +49 (0) 345/55 299 25449

room 117
Von-Seckendorff-Platz 1
06120 Halle (Saale)

Mehr Kontaktinformationen:
Siehe 'Kontakt/Contact' auf der linken Seite!
More contact information:
See 'Contact/Kontakt' on the left!


How to reach us    

postal address:
Martin-Luther-Universität Halle-Wittenberg
Naturwissenschaftliche Fakultät II
Institut für Physik
Von-Seckendorff-Platz 1
06120 Halle (Saale)
GERMANY

Further settings

Login for editors

Collaborative Research Centre SFB 762: Functionality of Oxide Interfaces

The SFB 762 is a joint initative of the universities Halle-Wittenberg and Leipzig as well as the Max Planck Institute of Microstructure Physics Halle.
The SFB 762 is a follow-up project of the Research Unit 404 "Oxidic Interfaces".
1st funding period: 01.01.2008-31.12.2011
2nd funding period: 01.01.2012-31.12.2015
3rd funding period: 01.01.2016-31.12.2019
Description of the research programme

⇐ ⇐ ⇐ Please use the grey navigation links to navigate on this page!

09/09/2019: Spintronics: Physicists discover new material for highly efficient data processing

A new material could aid in the development of extremely energy efficient IT applications. The material was discovered by an international research team in cooperation with Martin Luther University Halle-Wittenberg (MLU). The electrons at the oxide interface of the material possess special properties which drastically increase the conversion rate of spin current to charge current. This is the foundation for future spintronic applications. The new material has been found to be more efficient than any previously investigated material, the team writes in the journal "Nature Materials".

Electric current flows through all technical devices. Heat is generated and energy is lost. Spintronics explores new approaches to solving this issue that utilise a special property of electrons: spin. This is a type of intrinsic angular momentum of electrons that generates a magnetic torque and it is what causes magnetism. The idea behind spintronics is: If spin current flows through a material instead of an electrical charge, no heat is generated and significantly less energy is lost in the device. "However, this approach still requires an electric current for the device to work. Therefore, an efficient spin-to-charge conversion is necessary for this novel technology to work," explains Professor Ingrid Mertig, a physicist at MLU. Her research group is part of the international research team that discovered the new material. The work was led by the French physicist Dr Manuel Bibes, who conducts research at the renowned institute Centre national de la recherche scientifique (CNRS) - Thales.

The group investigated the interface between two oxides. "The two substances are actually insulators and are non-conductive. However, a kind of two-dimensional electron gas forms at their interface, which behaves like a metal, conducts current and can convert charge current into spin current with extremely high efficiency," explains Mertig. Dr Annika Johansson and Börge Göbel, two members of her research group, provided the theoretical explanation for this unusual observation. According to the researchers, the new material is significantly more efficient than any other known material. This could pave the way for the development of new, energy-saving computers.

News archive

Up