Magnetic Skyrmion Transistor Gated with Voltage-Controlled Magnetic Anisotropy

Adv Mater. 2023 Mar;35(9):e2208881. doi: 10.1002/adma.202208881. Epub 2022 Dec 29.

Abstract

The paradigm shift of information carriers from charge to spin has long been awaited in modern electronics. The invention of the spin-information transistor is expected to be an essential building block for the future development of spintronics. Here, a proof-of-concept experiment of a magnetic skyrmion transistor working at room temperature, which has never been demonstrated experimentally, is introduced. With the spatially uniform control of magnetic anisotropy, the shape and topology of a skyrmion when passing the controlled area can be maintained. The findings will open a new route toward the design and realization of skyrmion-based spintronic devices in the near future.

Keywords: skyrmion transistors; skyrmions; spintronics; voltage-controlled magnetic anisotropy.