[Images above] Credit: NIST
Columbia University researchers found evidence that two competing phenomena—superconductivity and ferroelectricity—can occur within bilayer Td-MoTe2. They say this study is the first time a tunable switch between ferroelectricity and superconductivity has ever been seen.
Chemists from Rice University and the University of Texas at Austin discovered more is not always better when it comes to packing charge-acceptor molecules on the surface of semiconducting nanocrystals.
A team at Ohio University used the Pittsburgh Supercomputing Center’s Bridges-2 system to carry out a series of simulations showing how coal might eventually be converted to valuable—and carbon-neutral—materials like graphite and carbon nanotubes.
Researchers led by Pusan National University used quinacridones as precursors to prepare carbonaceous sodium-ion battery anodes. The anodes exhibited a high rate capability (290 mAh/g at 0.05 A/g ) and great cycle stability (134 mAh/g at 5 A/g for 1,000 cycles).
Argonne National Laboratory researchers advanced sulfur-based battery research by creating a layer within the battery that adds energy storage capacity while nearly eliminating a traditional problem with sulfur batteries that caused corrosion.
Researchers at Dresden University of Technology developed a new type of heterojunction solar cell that uses two polymorphs of a single material: caesium lead iodide. They report that the top layer of gamma-perovskite improves the performance of the solar cells by passivating defects at the surface of the bottom beta-phase layer.
Researchers from Pohang University of Science and Technology are developing a noninvasive neural stimulation strategy based on piezoelectric nanoparticles. The nanoparticles serve two functions: transient opening of the blood–brain barrier and stimulating dopamine release, both controlled by externally applied focused ultrasound.
Researchers led by University of Minnesota Twin Cities developed a new method based on hybrid molecular beam epitaxy for making thin films of perovskite oxide semiconductors.
A Japanese research collaboration led by scientists from Nagoya Institute of Technology directly investigated how laser choice influences laser-induced periodic surface structures (LIPSS). LIPSS has been earmarked as a novel and prospective alternative method for creating structures on submicron scales.
Researchers from Massachusetts Institute of Technology, Harvard University, and laboratories in Italy and Switzerland argued that tiny lime clasts in Roman concrete, previously disregarded as evidence of sloppy mixing practices, gave the concrete a previously unrecognized self-healing capability.
Researchers led by Lawrence Berkeley National Laboratory discovered that electrons play a surprising role in how energy is transferred between layers of 2D tungsten diselenide and tungsten disulfide. Although the layers are not tightly bonded to one another, electrons provide a bridge between them that facilitates rapid heat transfer.
The relationship between microstructure evolution and property degradation of two representative second-phase dispersion strengthened tungsten materials after electron beam thermal loading was investigated by a collaborative research team from Hefei Institutes of Physical Science, Chinese Academy of Sciences.