News by Subject Chemistry & Physics

Researchers from Tokyo Metropolitan University have discovered a new way of controlling the drying patterns formed by re-crystallizing salt. They found that the coffee ring effect can be used to pin the edge of drying droplets, creating a range of different geometric patterns. The same principles may be applied to understand and improve the adhesion of printer ink to surfaces and the manufacture of film-based devices.

There's quite a story behind calaverite. Apart from its marked impact on the Gold Rush, the mineral has been a headache and a great paradox for crystallographers for decades. The deeper researchers dug into it, the more new questions came up. Scientists from Russia and Germany have succeeded in interlacing all the oddities of calaverite within a simple model, so experimenters can now hunt for the new compound they predicted, AuTe, unknown until now.

Osaka University researchers developed the first device that can detect single-electron events in a self-assembled quantum dot in real time. The device detects the single-electron tunneling events of one quantum dot as changes in the current produced by a second quantum dot in close proximity. This device allows single-electron events in quantum dots to be investigated, which is beneficial for the development of photonic devices and quantum computing.

Fundamental research: FLEET study of ultracold atomic gases at Swinburne University of Technology finds quantum anomaly, strongly interacting particles breaking classical symmetry in a 2D Fermi gas. Out today in Physical Review Letters.

RUDN University researchers have developed a mathematical method that allowed to solve the quantum Coulomb three body problem for bound states with high accuracy. They also showed that previous calculations performed by a group of Japanese scientists is incorrect. The work will help to calculate the trajectories of quantum particles motion in space accurately. Its results will be useful in solving fundamental problems of physics. The paper was published in the journal Physical Review A.

An experiment at the University of Nebraska-Lincoln demonstrated how the application of intense light boosts electrons to their highest attainable speeds.

Physicists report in Nature magazine how they have sent and controlled a spin current across longer distances than ever before -- and in a material that was previously considered unsuitable for the task.

Scientists at Tokyo Institute of Technology have theoretically demonstrated that special tetrahedron nanostructures composed of certain metals have a higher degree of symmetry than the geometrical symmetry of spherical atoms. Nanomaterials with unique and unprecedented electrical and magnetic properties arising from this symmetry will be developed and used for next-generation electronic devices.