Communications of the ACM
A New Spin on Electronics
A University of Utah-led team has discovered that a class of materials called organic-inorganic hybrid perovskites could be a game changer for future spintronic devices.
Credit: University of Utah
Researchers at the University of Utah led a study exploring how organic-inorganic perovskites could transform spintronic devices. The team found perovskites permit easily controllable electron spin and have a sufficiently long spin lifetime to transport information.
The researchers formed a thin film from the hybrid perovskite methyl-ammonium lead iodine, positioning it before an ultrafast laser. The laser was divided into two beams, and the first one struck the film to set the electron spin in the desired direction, while the second was bent through a mirror array before hitting the perovskite film at longer intervals to quantify the spin lifetime.
The team found the perovskite can sustain the desired spin direction for up to a nanosecond, enabling much data to be stored and manipulated during that time.
The researchers rotated the spin more than 10 turns by exposing the electron to different magnetic-field strengths, and they say the material could process data faster and boost random-access memory.
From University of Utah News
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