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    Category Technology/Electronics

    Antiferromagnetic Hybrids achieve important Functionality for Spintronic Applications

    August 24, 2022, Categories  Technology/Electronics

    Antiferromagnetic hybrids achieve important functionality for spintronic applications
    (a) Cross-sectional transmission electron micrograph of the m-plane Al2O3/Cr2O3 interface with the c-axis [0001]-oriented out of the page and (b,c) the corresponding diffractograms of Cr2O3 and Al2O3 indicating epitaxial order. (d) Sample geometry. The magnetic field is applied parallel to the c-axis. (e) Spin Seebeck (SSE) voltage of the Cr2O3/Pt sample shows a sign change across the SF transition. (f) SSE signals dominated by left-hand (LH) and quasiferromagnetic (QFM) magnons fall rapidly with increasing temperature. Credit: Rodolfo Rodriguez et al, Physical Review Research (2022). DOI: 10.1103/PhysRevResearch.4.033139

    Antiferromagnets have zero net magnetization and are insensitive to external magnetic field perturbations...

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    Mathematicians suggest Liquid Crystals could be used to create Building Blocks for a New Kind of Computer

    August 23, 2022, Categories  Physics, Technology/Electronics

    Mathematician pair suggest liquid crystals could be used to create building blocks of a new kind of computer
    Nbits pinned to an LC defect line. The local nematic director field n(r), indicated by cylindrical bars, rotates by π along closed curves encircling the defect line (black). The director field is colored by its out-of-plane component, nz(r), while xy-planes are colored by the director’s azimuthal orientation nϕ(r) relative to the x axis. The near-field director profile (red) close to the defect line defines the nbit state. The vertical direction may be interpreted as either a spatial or a time dimension. Credit: Science Advances (2022). DOI: 10.1126/sciadv.abp8371

    A pair of researchers at MIT have found evidence suggesting that a new kind of computer could be built based on liquid crystals rather than silicon...

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    The new moisture-driven electricity generation device invented by NUS researchers capitalises on the difference in moisture content of the wet and dry regions of the carbon-coated fabric to create an electric current. Sea salt is used as a moisture absorbent for the wet region.

    Researchers have developed a new moisture-driven electricity generation device made of a thin layer of fabric, sea salt, carbon ink, and a special water-absorbing gel. The device works by keeping one end of the fabric dry, while the other end is perpetually wet. The difference in moisture content of the wet and dry regions of the carbon-coated fabric creates an electric current...

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    2D Array of Electron and Nuclear Spin Qubits Opens New Frontier in Quantum Science

    August 16, 2022, Categories  Physics, Technology/Electronics

    Qubits_featured
    Using photons and electron spin qubits, researchers demonstrated atomic-scale sensing for use in NMR, and by controlling nuclear spin, creating nuclear qubits with longer coherence times than previously used electron spin qubits.

    By using photons and electron spin qubits to control nuclear spins in a 2D material, researchers at Purdue University have opened a new frontier in quantum science and technology, enabling applications like atomic-scale nuclear magnetic resonance spectroscopy, and to read and write quantum information with nuclear spins in 2D materials.

    As published Monday (Aug...

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