Science Daily September 4, 2020
An international team of researchers (Germany, Russia) demonstrated the use of elastic vibrations to manipulate the spin states of optically active color centers in SiC at room temperature. They used a surface acoustic wave cavity to selectively address spin transitions with magnetic quantum number differences of ±1 and ±2 in the absence of external microwave electromagnetic fields. These spin-acoustic resonances reveal a nontrivial dependence on the static magnetic field orientation, which is attributed to the intrinsic symmetry of the acoustic fields combined with the peculiar properties of a half-integer spin system. These findings establish silicon carbide as a highly promising hybrid platform for on-chip spin-optomechanical quantum control enabling engineered interactions at room temperature…read more. TECHNICAL ARTICLE