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    Category Physics

    Research reveals Rare Metal could offer Revolutionary Switch for Future Quantum Devices

    November 24, 2023, Categories  Physics

    Image shows a representation of emergent symmetry, showing a perfectly symmetric water droplet emerging from a layering of snow. The ice crystals in the snow, by contrast, have a complex shape and therefore a lower symmetry than the water droplet. The purple colour denotes the purple bronze material in which this phenomenon was discovered.University of Bristol

    Quantum scientists have discovered a rare phenomenon that could hold the key to creating a ‘perfect switch’ in quantum devices which flips between being an insulator and superconductor.

    The research, led by the University of Bristol and published in Science, found these two opposing electronic states exist within purple bronze, a unique one-dimensional metal composed of individual conducting chains of atoms.

    Tiny changes in...

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    Inverted Perovskite Solar Cell Breaks 25% Efficiency Record

    November 22, 2023, Categories  Physics

    Inverted perovskite solar cell breaks 25% efficiency record
    Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency. Credit: Sargent Lab/Northwestern University

    Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency.

    The findings, published today (Nov. 17) in the journal Science, describe a dual-molecule solution to overcoming losses in efficiency as sunlight is converted to energy...

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    New technique could Speed up the Development of Acoustic Lenses, Impact-resistant Films and other Futuristic Materials

    November 17, 2023, Categories  Physics

    Seven tall, rectangular columns stand against a black background. The columns are made of a lattice-like pattern and some of them tilt at the top. In the center of the image, a green beam of light reaches between the top of the image and the middle column.
    Caption: This optical micrograph shows an array of microscopic metamaterial samples on a reflective substrate. Laser pulses have been digitally added, depicting pump (red) and probe (green) pulses diagnosing a sample in the center. The LIRAS technique sweeps through all samples on the substrate within minutes.
    Credits:Credit: Courtesy of the researchers

    Metamaterials are products of engineering wizardry. They are made from everyday polymers, ceramics, and metals. And when constructed precisely at the microscale, in intricate architectures, these ordinary materials can take on extraordinary properties.

    With the help of computer simulations, engineers can play with any combination of microstructures to see how certain materials can transform, for instance, into sound-focusing acoustic ...

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    This 3D Printer can Watch Itself Fabricate Objects

    November 16, 2023, Categories  Chemistry/Nanotechnology, Physics

    Rendering shows a six-legged robot, standing against a black background, in the process of being 3D-printed. Near the back of the robot, floating black spheres are assembled and then cured by a blue UV light beaming down from above. On top, cameras point down to scan the action.
    Caption: This rendering shows a robot being built layer-by-layer using the new process. The black spheres represent the material that the printer uses. The material is then cured by UV light, represented in blue. At the top of the image are the cameras that scan the procedure and adjust accordingly.
    Credits:Image: Moritz Hocher

    Computer vision enables contact-free 3D printing, letting engineers print with high-performance materials they couldn’t use before. With 3D inkjet printing systems, engineers can fabricate hybrid structures that have soft and rigid components, like robotic grippers that are strong enough to grasp heavy objects but soft enough to interact safely with humans.

    These multimaterial 3D printing systems utilize thousands of nozzles to deposit tiny droplets of resin, ...

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