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    Category Technology/Electronics

    Future Information Technologies 3D Quantum Spin Liquid Revealed

    May 12, 2020, Categories  Physics, Technology/Electronics

    One of the four magnetic interactions leads to a three-dimensional network of corner-sharing triangles also known as the hyperkagome lattice. Combined the magnetic interactions form a hyper-hyper-Kagome lattice which allows the 3D quantum spin liquid behavior.
    CREDIT HZB

    Quantum spin liquids are candidates for potential use in future information technologies. So far, quantum spin liquids have usually only been found in one or two dimensional magnetic systems only. Now an international team has investigated crystals of PbCuTe2O6 with neutron experiments.

    They found spin liquid behaviour in 3D, due to a so called hyper hyperkagome lattice. The experimental data fit extremely well to theoretical simulations also done at HZB.

    IT devices today are based on electronic processes in semi...

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    Plasma Electrons can be used to Produce Metallic films

    May 10, 2020, Categories  Physics, Technology/Electronics, Chemistry/Nanotechnology

    A view into the vacuum chamber showing the plasma above the surface on which the metallic film is created. Magnus Johansson

    Computers, mobile phones and all other electronic devices contain thousands of transistors, linked together by thin films of metal. Scientists at Linköping University, Sweden, have developed a method that can use the electrons in a plasma to produce these films.

    The processors used in today’s computers and phones consist of billions of tiny transistors connected by thin metallic films. Scientists at Linköping University, LiU, have now shown that it is possible to create thin films of metals by allowing the free electrons in a plasma take an active role...

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    Shedding New Light on Nanolasers using 2D Semiconductors

    May 8, 2020, Categories  Physics, Technology/Electronics

    The process Cun-Zheng Ning and his team used to create nanolasers with 2D semiconductor materials.
    In research conducted by Cun-Zheng Ning and his ASU and Tsinghua University collaborators, a single layer of 2D material was placed on a carefully designed substrate with gold as a back-gate to control the number of electrons in the material. Another laser pumps the 2D material to create excitons, some of which form trions with the pre-existing electrons. The reflected light is monitored to find the signature of amplification. Graphic courtesy of Cun-Zheng Ning

    Scientists have discovered a process of physics that enables low-power nanolasers to be produced in 2D semiconductor materials. Understanding the physics behind lasers at nanoscale and how they interact with semiconductors can have major implications for high-speed communication channels for supercomputers and data centers.

    I...

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    Fossil fuel-free jet propulsion with air plasmas

    May 7, 2020, Categories  Physics, Technology/Electronics, Chemistry/Nanotechnology

    A schematic diagram of a prototype microwave air plasma thruster and the images of the bright plasma jet at different microwave powers. This device consists of a microwave power supply, an air compressor, a compressed microwave waveguide and a flame ignitor. CREDIT: Jau Tang and Jun Li

    Humans depend on fossil fuels as their primary energy source, especially in transportation. However, fossil fuels are both unsustainable and unsafe, serving as the largest source of greenhouse gas emissions and leading to adverse respiratory effects and devastation due to global warming.

    A team of researchers at the Institute of Technological Sciences at Wuhan University has demonstrated a prototype device that uses microwave air plasmas for jet propulsion...

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