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    Tiny receiver chip uses stacked capacitors to block interference in 5G IoT devices

    June 17, 2025, Categories  Physics, Technology/Electronics

    This compact, low-power receiver could give a boost to 5G smart devices
    MIT researchers developed this compact, wireless receiver chip that uses a special filtering mechanism which consumes less than a milliwatt of static power while blocking unwanted signals that could jam an IoT device like a health wearable. Credit: Soroush Araei, Mohammad Barzgari, Haibo Yang and Negar Reiskarimian

    MIT researchers have designed a compact, low-power receiver for 5G-compatible smart devices that is about 30 times more resilient to a certain type of interference than some traditional wireless receivers.

    The low-cost receiver would be ideal for battery-powered internet of things (IoT) devices like environmental sensors, smart thermostats, or other devices that need to run continuously for a long time, such as health wearables, smart cameras, or industrial monitoring sen...

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    Ferroelectrics everywhere? New family of ferroelectric materials Raises Possibilities for Improved Information and Energy Storage

    September 1, 2021, Categories  Physics, Technology/Electronics

    Three images showing production of ferroelectric magnesium-substituted zinc oxide thin films
    Part of the process of creating ferroelectric magnesium-substituted zinc oxide thin films include: (left) Image showing thin film being sputter-deposited from metal sources; (center) ferroelectric hysteresis loops of thin-film capacitors showing two remanent polarization states at zero field; (right) atomic force microscope image showing a smooth surface at the nanometer scale and a very fine-grained and fiber-textured microstructure.
     IMAGE: PENN STATE MATERIALS RESEARCH INSTITUTE

    A new family of materials that could result in improved digital information storage and uses less energy may be possible thanks to a team of Penn State researchers who demonstrated ferroelectricity in magnesium-substituted zinc oxide.

    Ferroelectric materials are spontaneous electricly polarized bcause nega...

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    For UW physicists, the 2D form of Tungsten Ditelluride is full of surprises

    August 12, 2018, Categories  Chemistry/Nanotechnology, Physics, Technology/Electronics

    When two monolayers of WTe2 are stacked into a bilayer, a spontaneous electrical polarization appears, one layer becoming positively charged and the other negatively charged. This polarization can be flipped by applying an electric field. Credit: Joshua Kahn

    When two monolayers of WTe2 are stacked into a bilayer, a spontaneous electrical polarization appears, one layer becoming positively charged and the other negatively charged. This polarization can be flipped by applying an electric field.
    Credit: Joshua Kahn

    Researchers report that the 2D form of tungsten ditelluride can undergo ‘ferroelectric switching.’ Materials with ferroelectric properties can have applications in memory storage, capacitors, RFID card technologies and even medical sensors – and tungsten ditelluride is the first exfoliated 2D material known to undergo ferroelectric switching.

    2D materials can be prepared in crystalline sheets as thin as a single monolayer, only one or a few atoms thick...

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