Recent Comments

    Topological Acoustic Transistor tagged posts

    The First Topological Acoustic Transistor

    January 6, 2022, Categories  Physics, Technology/Electronics

    To turn ‘on’ an acoustic transistor, ultrasound arriving at the ‘gate’ input heats and expands the base plate, changing the spacing in two lattices of slightly-different-sized pillars, and inducing a topological transition that guides sound along the interface. (Credit: Hoffman Lab/Harvard SEAS)

    Sound waves may pave the way for topological electronic transistors. Researchers have designed and simulated the first topological acoustic transistors — with sound waves instead of electrons — and proposed a connection architecture to form a universal logic gate that can switch the flow of sound on and off.

    Topological materials move electrons along their surface and edges without any loss, making them promising materials for dissipationless, high-efficiency electronics...

    Read More