‘Nanowire’ crystals with superconducting properties developed

‘Nanowire’ crystals with superconducting properties developed

12:41 PM, 13th January 2015
‘Nanowire’ crystals with superconducting properties developed
The interface between the semiconductor and the metal is perfect and establish the new superconducting hybrid crystals, which could ultimately form the basic for future superconducting electronics.

COPENHAGEN, DENMARK: A new type of ‘nanowire’ crystals that fuses semiconducting and metallic materials on the atomic scale could lay the foundation for future semiconducting electronics. Researchers at the University of Copenhagen are behind the breakthrough, published in Nature Materials, which has great potential.

The development and quality of extremely small electronic circuits are critical to how and how well future computers and other electronic devices will function. The new material, comprised of both a semiconductor and metal, has a special superconducting property at very low temperatures and could play a central role in the development of future electronics.

“Our new material was born as a hybrid between a semiconducting nanowire and its electronic contact. Thus we have invented a way to make a perfect transition between the nanowire and a superconductor. The superconductor in this case is aluminium. There is great potential in this,” said Thomas Sand Jespersen, Associate Professor who has worked in the field for more than 10 years, ever since research into nanowire crystals has existed at the Nano-Science Center at the Niels Bohr Institute.

Nanowires are extremely thin nanocrystal threads used in the development of new electronic components, like transistors and solar cells. Part of the challenge of working with nanowires is creating a good transition between these nanowires and an electrical contact to the outside world. Up until now, researchers, not just at the Niels Bohr Institute, but from all over the world, have cultured nanowires and the contact separately. However, with the new approach, both the quality and the reproducibility of the contact have improved considerably.

“The atoms sit in a perfectly ordered lattice in the nanowire crystal, not only in the semiconductor and the metal, but also in the transition between the two very different components, which is significant in itself. You could say that it is the ultimate limit to how perfect a transition one could imagine between a nanowire crystal and a contact. Of course this opens many opportunities to make new types of electronic components on the nanoscale and in particular, this means that we can study the electrical properties with much greater precision than before,” explained Peter Krogstrup, Assistant Professor, University of Copenhagen.

In their publication in Nature Materials, the research group has demonstrated this perfect contact and its properties and has also shown that they can make a chip with billions of identical semiconductor-metal nanowire hybrids.

“We think that this new approach could ultimately form the basis for future superconducting electronics, and that is why the research into nanowires is interesting for the largest electronics companies,” said Thomas Sand Jespersen.

 

© University of Copenhagen News

0 Comments

Login

Your Comments (Up to 2000 characters)
Please respect our community and the integrity of its participants. WOC reserves the right to moderate and approve your comment.

Related News


Gazprom, Air Liquide to develop helium deposits in Siberia, Russia

SIBERIA, RUSSIA: Gazprom, Russian natural gas producer, and Air Liquide signed a Memorandum of Understanding with a view to jointly develop helium dep ...

Read more
BASF, Sinopec complete feasibility study for isononanol plant in China

BEIJING, CHINA/LUDWIGSHAFEN, GERMANY: BASF and China Petroleum & Chemical Corporation (Sinopec) have completed a joint feasibility study and tak ...

Read more
Gas leakage at Lubrizol’s plant in Rouen, France

ROUEN, FRANCE: Mercaptan, a harmless additive to natural gas, leaked from Lubrizol’s plant in France on 21 January 2013 near Rouen, 75 miles ( ...

Read more
China to survey active pharmaceutical ingredients export

BEIJING, CHINA: The State Food and Drug Administration, the drug-safety watchdog in China, ordered a survey over exports of active pharmaceutical in ...

Read more
Evonik forms Biolys JV in Russia

ESSEN, GERMANY: Evonik and the government of the Russian Rostov Region signed a memorandum of understanding to establish a facility for the production ...

Read more
Mitsui Chemicals, Kemira JV for acrylamide manufacturing technology

TOKYO, JAPAN: Mitsui Chemicals signed a licensing agreement for acrylamide manufacturing technology with Kemira OYJ. Mitsui Chemicals, positions its a ...

Read more