All-optical switching of magnetoresistive devices using telecom-band femtosecond laser
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 07, 2015
- Source ID
- 10.1063/1.4930823
Entities
People
- He Li
- Jian-Ping Wang
- Jun-yang Chen
- Mo Li
Organizations
- Defense Advanced Research Projects Agency
- Semiconductor Research Corporation
- University of Minnesota