Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Boost for ToCoTronics

23.05.2019

A great success for Würzburg's physics department: its Collaborative Research Centre was rated as excellent and is now entering its second funding phase. The German Research Foundation is providing 12 million euros for this purpose.

In 2015, physicists at Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany, succeeded in establishing a new Collaborative Research Centre in Würzburg. The German Research Foundation (DFG) provided around 11 million euros for this purpose.


The graphic shows the interplay between topology (blue ring) and strong correlation (electron spins; coloured arrows on the square grid). This is what the Würzburg SFB ToCoTronics is all about.

Graphic: Jörg Schäfer / University of Würzburg

The money went into research into topological materials – this class of materials is characterised by very unusual properties. It is being studied intensively worldwide because it promises novel applications in information technology and other fields.

Now the Collaborative Research Centre (in short SFB for “Sonderforschungsbereich”) was to be evaluated according to plan. This process was very successful for the university: The DFG continues to rate the work carried out and the new research plans as excellent. It is funding the SFB "Topological and Correlated Electronics in Surfaces and Interfaces (ToCoTronics)" for another four years with a total of 12 million euros.

Results are published in renowned journals

Professor Björn Trauzettel, one of the two SFB spokespersons and holder of the JMU Chair of Theoretical Physics IV, is very pleased with this success: "In the SFB we have decisively advanced research on topological materials. We have discovered new topological insulators and optimized hybrid systems made of topological materials and superconductors".

The achievements of the entire SFB research team are reflected in the large number of more than 200 joint publications in renowned scientific journals. More than 50 of those publications have appeared in high-impact journals such as Nature, Science, Nature Physics, Nature Materials, and Physical Review Letters.

The research programme until 2023

The DFG funding will be used to finance almost 40 new positions at the SFB over the next four years. The new research programme revolves around a central question: How do electronic correlations influence the topological physics of solids and vice versa?

"Once we understand the underlying mechanisms, we can design nanosystems with functional properties and use them for innovative applications in spintronics or quantum information technology," says Trauzettel.

First intermediate goals are the optimization of the material quality of known topological insulators, the generation of novel topological interface phases by combining them with superconductors and ferromagnets, and functionalization for new applications.

Professor Ralph Claessen, the other SFB spokesperson and holder of the JMU Chair of Experimental Physics IV, describes another central focus: "It will be on the interaction of spin orbital coupling with Coulomb interaction, which is still poorly understood but has extensive potential for the discovery of new topological materials and phenomena.”

Boost for solid state research

The second phase of the SFB ToCoTronics runs simultaneously with the first funding period of the Cluster of Excellence ct.qmat, in which the University of Würzburg and the TU Dresden jointly do research on topological physics in different systems. ToCoTronics is an important pillar of the Cluster of Excellence. It is to be expected that the synergies of both projects will give JMU solid state research a boost that will strengthen the university's position as one of the world's leading research locations.

Wissenschaftliche Ansprechpartner:

Prof. Dr. Björn Trauzettel, Institute for Theoretical Physics and Astrophysics, JMU, T +49 931 31-83638, trauzettel@physik.uni-wuerzburg.de

Prof. Dr. Ralph Claessen, Institute of Physics, JMU, T +49 931 31-85732, claessen@physik.uni-wuerzburg.de

Weitere Informationen:

https://www.physik.uni-wuerzburg.de/sfb1170/startseite/ Collaborative Research Center ToCoTronics

https://www.uni-wuerzburg.de/en/news-and-events/news/detail/news/cutting-edge-re... For lay persons: Information about the research topic in ToCoTronics can be found in the press release distributed by JMU in May 2015 at the start of the SFB

Robert Emmerich | Julius-Maximilians-Universität Würzburg

More articles from Physics and Astronomy:

nachricht Immortal quantum particles: the cycle of decay and rebirth
14.06.2019 | Technische Universität München

nachricht Small currents for big gains in spintronics
13.06.2019 | University of Tokyo

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: The hidden structure of the periodic system

The well-known representation of chemical elements is just one example of how objects can be arranged and classified

The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...

Im Focus: MPSD team discovers light-induced ferroelectricity in strontium titanate

Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...

Im Focus: Determining the Earth’s gravity field more accurately than ever before

Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.

The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...

Im Focus: Tube anemone has the largest animal mitochondrial genome ever sequenced

Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.

The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs....

Im Focus: Tiny light box opens new doors into the nanoworld

Researchers at Chalmers University of Technology, Sweden, have discovered a completely new way of capturing, amplifying and linking light to matter at the nanolevel. Using a tiny box, built from stacked atomically thin material, they have succeeded in creating a type of feedback loop in which light and matter become one. The discovery, which was recently published in Nature Nanotechnology, opens up new possibilities in the world of nanophotonics.

Photonics is concerned with various means of using light. Fibre-optic communication is an example of photonics, as is the technology behind photodetectors and...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

Uncovering hidden protein structures

18.06.2019 | Life Sciences

Monitoring biodiversity with sound: how machines can enrich our knowledge

18.06.2019 | Life Sciences

Schizophrenia: Adolescence is the game-changer

18.06.2019 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>