Researchers at Japan's National Institute for Materials Science (NIMS) have synthesized a novel superconductor, SrAuSi3, which contains gold as a principal constituent element.
Led by Masaaki Isobe, a team consisting of Hiroyuki Yoshida, Koji Kimoto, Masao Arai and Eiji Muromachi recently searched for novel substances that lack spatial inversion symmetry in their crystal structures.
They successfully synthesized a new compound, SrAuSi3, and found that it exhibits superconductivity at an absolute temperature of 1.6 K (-271.55°C). This compound belongs to a group with a so-called BaNiSn3-type structure (general chemical formula: AMX3, where M represents a transition-metal element).
Up until now, research on superconductivity with broken spatial inversion symmetry has mostly focused on compounds that contain a relatively heavy element M, such as rhodium (Rh), iridium (Ir), and platinum (Pt).
However, using a high-pressure synthesis method, the team successfully synthesised for the first time a compound with the same general chemical formula but using gold (Au), which is even heavier, as element M.
One of the predicted properties associated with superconductivity with broken spatial inversion symmetry is the extremely high upper critical field (the maximum magnetic field value at which superconductivity is sustained).
The discovery of this substance is expected to contribute not only to an understanding of the mechanism involved in superconductivity with broken spatial inversion symmetry but also to the development of new superconducting materials that can be used in a magnetic field.
The results of this research were published in the March 25, 2014 issue (Volume 6, Issue 6) of Chemistry of Materials, a journal distributed by the American Chemical Society.
A hydrophobic membrane with nanopores for highly efficient energy storage
22.07.2016 | DWI - Leibniz-Institut für Interaktive Materialien
New reaction for the synthesis of nanostructures
21.07.2016 | Institute of Chemical Research of Catalonia (ICIQ)
Munich Physicists have developed a novel electron microscope that can visualize electromagnetic fields oscillating at frequencies of billions of cycles per second.
Temporally varying electromagnetic fields are the driving force behind the whole of electronics. Their polarities can change at mind-bogglingly fast rates, and...
Breakup of continents with two speed: Continents initially stretch very slowly along the future splitting zone, but then move apart very quickly before the onset of rupture. The final speed can be up to 20 times faster than in the first, slow extension phase.phases
Present-day continents were shaped hundreds of millions of years ago as the supercontinent Pangaea broke apart. Derived from Pangaea’s main fragments Gondwana...
Scaffolding and specialised workers help with the delivery – Heidelberg biochemists gain new insights into biogenesis
A type of scaffolding on which specialised workers ply their trade helps in the manufacturing process of the two subunits from which the ribosome – the protein...
Scientists at the Helmholtz Zentrum München have developed a new mass spectrometry imaging method which, for the first time, makes it possible to analyze hundreds of metabolites in fixed tissue samples. Their findings, published in the journal Nature Protocols, explain the new access to metabolic information, which will offer previously unexploited potential for tissue-based research and molecular diagnostics.
In biomedical research, working with tissue samples is indispensable because it permits insights into the biological reality of patients, for example, in...
Chemists at the University of Basel have succeeded in using computer simulations to elucidate transient structures in proteins. In the journal Angewandte Chemie, the researchers set out how computer simulations of details at the atomic level can be used to understand proteins’ modes of action.
Using computational chemistry, it is possible to characterize the motion of individual atoms of a molecule. Today, the latest simulation techniques allow...
15.07.2016 | Event News
15.07.2016 | Event News
11.07.2016 | Event News
22.07.2016 | Information Technology
22.07.2016 | Physics and Astronomy
22.07.2016 | Life Sciences