: a synthetic compound GaAs used especially as a semiconducting material
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The islands are grown on a gallium arsenide/aluminum gallium arsenide (GaAs/AlGaAs) heterostructure that hosts a two-dimensional electron gas, enabling precise control of electrons.—Ameya Paleja, Interesting Engineering, 3 Apr. 2026 The measurements were taken from a wafer of gallium arsenide cooled to a few thousandths of a degree above absolute zero and placed in a powerful magnetic field.—IEEE Spectrum, 13 Dec. 2025 Because its aluminum gallium arsenide semiconductor diode uses light for photovoltaic power, the MOTE can transmit its neuro-electric data via red and infrared lasers beam directly through the brain without inflicting harm, and without needing wires or tethering.—New Atlas, 6 Nov. 2025 The increase is attributed to higher demand for indium phosphide (InP) and gallium arsenide (GaAs) substrates.—Quartz Intelligence Newsroom, Quartz, 14 Mar. 2025 See All Example Sentences for gallium arsenide