All-optical switching of magnetoresistive devices using telecom-band femtosecond laser

Academic Article


  • Ultrafast all-optical switching of the magnetization of various magnetic systems is an intriguing phenomenon that can have tremendous impact on information storage and processing. Here, we demonstrate all-optical switching of GdFeCo alloy films using a telecom-band femtosecond fiber laser. We further fabricate Hall cross devices and electrically readout all-optical switching by measuring anomalous Hall voltage changes. The use of a telecom laser and the demonstrated all-optical switching of magnetoresistive devices represent the first step toward integration of opto-magnetic devices with mainstream photonic devices to enable novel optical and spintronic functionalities.
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • He L; Chen JY; Wang JP; Li M
  • Volume

  • 107
  • Issue

  • 10