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“#Liquid carbon characterized using a free electron laser” Femtosecond pump–probe pulses generate and characterize liquid carbon for the first time in an FEL facility. Credit: Principi From common soot to precious diamonds, carbon is familiar in many guises, but there have been little more than glimpses of carbon in the liquid form. Researchers at the…
“#Kondo physics in antiferromagnetic Weyl semimetal films” Crystal structure and spin structure of Mn3Sn. (A) Crystal structure of Mn3Sn, which consists of stacked Kagome Mn3Sn layers, and (B) triangular spin structure in the Kagome layer (ab plane). Credit: Science Advances, doi: 10.1126/sciadv.abc1977 Emerging quantum materials can be defined by topology and strong electron correlations, although…
“#New superlattice material for future energy efficient devices” Credit: CC0 Public Domain A team of international physicists including Jennifer Cano, Ph.D., of Stony Brook University, has created a new material layered by two structures, forming a superlattice, that at a high temperature is a super-efficient insulator conducting current without dissipation and lost energy. The finding,…
“#Study unveils the unstable nature of some topological phases” Image representing time-reversal symmetry. Credit: McGinley & Cooper In recent years, physicists worldwide have been conducting studies exploring the characteristics and dynamics of topological phases of matter that could enable the development of quantum devices and other new technologies. Some of these phases are supported by…
“#International team develops new method to determine origin of stardust in meteorites” Photograph of GRETINA in ATLAS at Argonne. Credit: Argonne National Laboratory Analysis of meteorite content has been crucial in advancing our knowledge of the origin and evolution of our solar system. Some meteorites also contain grains of stardust. These grains predate the formation…
“#Theoretical study shows that matter tends to be ordered at low temperatures” Schematic representation of the phase diagram “Temperature T versus external magnetic field B”, for a quantum phase transition under the application of external magnetic field. In (a), the quantum critical point (light blue) undergoes a phase transition when the external magnetic field reaches…
“#When Dirac meets frustrated magnetism” Schematic of the triangular vanadium net (purple balls) with magnetic moments (turqouise arrows) and the anomalous hall effect (red balls are electrons and blue are holes) from the Dirac quasiparticles (Dirac diabolo shown left). Credit: MPI of Microstructure Physics The fields of condensed matter physics and materials science are intimately…
“#Order out of disorder in ice” An illustration shows structural evolution of ice VII as a function of time at constant P-T conditions. Credit: Center for High Pressure Science & Technology Advanced Research The glass structure of a material is often believed to mimic its corresponding liquid. Polyamorphism between ices has been used as a…
“#Introducing a new isotope: Mendelevium-244” Jennifer Pore, a Berkeley Lab project scientist who led the study detailing the discovery of mendelevium-244, operates the Berkeley Gas-filled Separator vacuum controller at Berkeley Lab’s 88-Inch Cyclotron in this 2018 photo. Credit: Marilyn Sargent/Berkeley Lab A team of scientists working at Lawrence Berkeley National Laboratory (Berkeley Lab) has discovered…