Researchers at the University of Warwick have found that phosphorus, an element commonly found in teeth, can act as a “superconductor” – but you would have to have the strength of Superman to clench your teeth hard enough for it to work - as it happens at a pressure of around 2.5 megabars – some 30,000 times harder than an ordinary human can clench their teeth.
Physicists were aware that lower pressures of around 0.1 megabars could convert the electrically insulating phosphorus to a form which can conduct and which allows limited superconductivity at 10 degrees Kelvin and under. Recently experimentalists have found that another form of phosphorus occurs when 2.5 megabars of pressure is applied which causes it to form a “body centred cubic” or bcc crystal structure, comprised of stacks of interpenetrating cubes of phosphorus atoms. Common metals such as iron and chromium have this structure at normal pressures. However it was not known until now if this form of phosphorus would superconduct.
Now University of Warwick physicists Sergey Ostanin and Julie Staunton have used a number of theoretical physics techniques to describe the movement of the electrons and ionic vibrations, which proves that this version of phosphorus is an even better superconductor than the phosphorus held under 0.1 megabars of pressure. The University of Warwick researchers predict that the bcc structure of phosphorus will in fact superconduct at temperatures of around 14-22 Kelvin.
Peter Dunn | University of Warwick
Study offers new theoretical approach to describing non-equilibrium phase transitions
27.04.2017 | DOE/Argonne National Laboratory
SwRI-led team discovers lull in Mars' giant impact history
26.04.2017 | Southwest Research Institute
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences