A promising magnetic memory architecture is the racetrack memory, where the information bit can be coded in magnetic regions separated by domain walls (DWs), which can be moved via the spin-transfer-torque (STT). Considering the Dzyaloshinskii–Moriya interaction (DMI)2, besides of DWs, it is possible to stabilize magnetic skyrmions in order to code information. A skyrmion racetrack memory can be obtained in four different scenarios A, B, C and D by combining the skyrmion type, Bloch (azimuthal magnetization in the skyrmion boundary) or Néel (radial magnetization in the skyrmion boundary), and its motion driven by the STT or the spin-Hall effect (SHE).
Skyrmion based racetrack memories - Conferenza internazionale - Presentazione orale
ZIVIERI, Roberto;
2014
Abstract
A promising magnetic memory architecture is the racetrack memory, where the information bit can be coded in magnetic regions separated by domain walls (DWs), which can be moved via the spin-transfer-torque (STT). Considering the Dzyaloshinskii–Moriya interaction (DMI)2, besides of DWs, it is possible to stabilize magnetic skyrmions in order to code information. A skyrmion racetrack memory can be obtained in four different scenarios A, B, C and D by combining the skyrmion type, Bloch (azimuthal magnetization in the skyrmion boundary) or Néel (radial magnetization in the skyrmion boundary), and its motion driven by the STT or the spin-Hall effect (SHE).I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
