Superhard materials are used for cutting, drilling and polishing. While the search for new superhard materials has mainly focused on crystal structure, researchers at UCLA and Virginia Commonwealth University look at controlling morphology. Through flux-growth, they have developed a method to synthesize superhard single crystalline nanowires in bulk. Share this #APLEP!
AgBiSe2 is a strong spin orbit coupling thermoelectric material; when exposed to hydrostatic pressure, it shows structural (hexagonal to rhombohedral) and electronic transitions (electronic topological and semiconductor to metal transition). Due to its multiple electronic transitions, AgBiSe2 may be a potential candidate for good thermoelectric performance and pressure switches at high... View details ⇨
Functional acoustic surfaces are developed based on two-dimensional arrays of acoustically resonant micro-bubbles. They provide highly directional propulsive forces in fluids through acoustic streaming remotely powered by ultrasound. The surfaces can be directly attached to passive devices to permit wireless actuation with multiple degrees of freedom. Share this #APLEP!
Artificial muscles are a type of biologically inspired material or device that can reversibly contract or rotate by external stimuli, such as heat, electricity or humidity. Researchers at LSU demonstrated an unusual improvement of the tensile actuation of an artificial muscle made of twisted two-way shape memory polymer fiber. #APLEP
Piezoelectric coefficients of GaN are key parameters in GaN-based power devices, but it has been difficult to determine them with existing methods because of limited sample size. Researchers at 大阪大学（Osaka University）developed a novel methodology and succeeded in determining the coefficients for the first time using ultrasonically stimulated carrier movement. Share this #APLEP!
Progress in multiferroics combines fundamental physics and applications in the electronic devices. Unfortunately, there are few multiferroic materials with room temperature operation. Therefore, exploration of various multiferroics materials is important for the development of this field. Researchers succeeded at stabilizing a metastable polar insulating Fe-based oxide in the epitaxial film... View details ⇨